Advantech I/O Module 5000 Series Bedienungsanleitung

ADAM-5000 Series I/O Module User's Manual Copyright Notice This doc ument i s copyrig hted, 19 97, by A dvantech C o., Lt d. All ri ghts ar e reserved. A dvantech C o., Ltd. , reserves the right t o make i mprovem ents to t he products described in this manual at any time without notice. No part of this manual m ay be re produce d, copie d, tr[...]

I/O Module Introduction ADAM-5000 Series I/O Module Us er’s Manual Table of Contents Chapter 1 Introduction ….……......... .........….......... ........…………. 1-1 Chapter 2 Analog Input Modules....... ...........….................….. ..... 2-1 2. 1 AD AM-50 13 3-channel R TD input modul e….. ....... .............. .....2- 2 2.[...]

I/O Module Introduction ADAM-5000 Series I/O Module Us er’s Manual Chapter 5 Serial Communication Module………..….............. ...... 5-1 5.1 AD AM-5090 4-port RS-232 Co mm unicati on Module........ ....... . 5- 2 Chapter 6 Analog I/O Mo dules C alibration............. ............. ........ 6-1 6.1 Analog input module calibration… ……[...]

Introduction 1[...]

Introduction 1- 2 ADAM 5000 IO modules User’ s Manu al This ma nu al introduces the d etail specifications fun ctions and applicatio n wiring of each ADAM -5000 I/O modul es. T o or ganize an ADAM-5 510 Seri es Contr o ller, you nee d to select I/O m odules to interface the mai n unit wi th field devices or processes that you have previous ly de [...]

Analog Input Modules 2[...]

Analog Input m odule 2- 2 ADAM 5000 IO modules User’ s Manu al Analog i nput modules use an A/D co nverter to con vert sensor v oltage, current, thermocouple or R TD signals into digital data. The digit al data is t hen translated into engineering units. The anal og input modu les protect y our equipm ent from grou nd loop s and power s urges by [...]

Chapter 2 2 - 3 Applicati on wiring Figure 2 - 2: RTD in puts[...]

Analog Input m odule 2- 4 ADAM 5000 IO modules User’ s Manu al T echnical specificatio ns of AD AM-5013 Analog in put channels three Input type Pt or Ni RTD Pt -100 to 100°C a=0.00385 Pt 0 to 100°C a=0.00 385 Pt 0 to 200°C a=0.00 385 Pt 0 to 600°C a=0.00 385 Pt -100 to 100°C a=0.00392 Pt 0 to 100°C a=0.00 392 Pt 0 to 200°C a=0.00 392 Pt 0 [...]

Chapter 2 2 - 5 2.2 AD AM-5017 8-channel a nalog input mo dule The ADAM-5017 is a 16-bi t, 8-channel analog differential input m odule that provid es programmable input ranges on all channels. It accep ts millivolt inputs (±150mV , ±500mV), voltage inputs (±1V , ±5V and ±10V) and current input (±20 m A, requires 125 ohms resistor). The module[...]

Analog Input m odule 2- 6 ADAM 5000 IO modules User’ s Manu al Applicati on wiring Figure2-4: Millivolt and volt inpu t Figure 2-5: Process curre nt input Note: T o keep m easurement accuracy plea se short the channels that are not in use.[...]

Chapter 2 2 - 7 T e chnical specificatio ns of AD AM-5017 Analog Input Channels Eight differential Input Type mV, V, mA Input Range ± 150 mV, ± 500 mV, ± 1 V, ± 5 V, ± 10 V and ± 20 mA Isolation Voltage 3000 V DC Sampling Rate 10 samples/sec (total) Analog Input Signal Limit 15 V max. Max. allowable voltage diffe rence between two connectors [...]

Analog Input m odule 2- 8 ADAM 5000 IO modules User’ s Manu al 2.3 AD AM-5 017H 8-channel high s peed analog inp ut module The ADAM-5017H is a 12-bit plus sign bit, 8- channel analog differential input module that provide s programm ab le input ranges on each channel. It accepts millivolt inputs (± 500 m V , 0-500 mV), voltage i nputs (±1 V , 0[...]

Chapter 2 2 - 9 Applicati on wiring Figure 2 - 7 : Millivolt an d volt input Figure 2 - 8 : Process current input[...]

Analog Input m odule 2- 10 ADAM 5000 IO modules Use r ’s Man ual Figure 2 - 9 : Locat ions of 12 5-ohm resist ors Note: T o maintain measuremen t accuracy please short channels not in use.[...]

Chapter 2 2 - 11 T e chnical specification s of AD AM-5017H Analog Input Ch annels 8 differential ADC Resolution 12 bits, plus sign bit Type of ADC Successive approximation Isolation Voltage 3000 V DC Sampling Rate 100 Hz Input Impedance 20 Mohms (voltage inputs); 125 ohms (current inputs) Signal Input Band width 1000 Hz for both voltage inputs and[...]

Analog Input m odule 2- 12 ADAM 5000 IO modules Use r ’s Man ual Input Range With Overrangi ng Offset Error @ 25°C Offset Error @ - 10 to +70°C Gain Error @ 25°C Gain Error @ - 10 to +70°C Offset Drift Gain Drift Displa y Resolution 0 ~ 10 V 0 ~ 11 V ±1 LSB ±2 LSB ±1 LSB ±2 LSB 17 µV/°C 50 ppm/°C 2.7 m V 0 ~ 5 V 0 ~ 5.5 V ± 1 LSB ±2 [...]

Chapter 2 2 - 13 2.4 AD AM-5 018 7-channel thermocouple in put module The ADAM-5018 is a 16-bi t, 7-channel thermocoupl e input module that features programmable input ranges on all channels. It accepts millivolt inputs (±1 5 mV , ±50 m V , ±100 mV , ±5 00 mV), voltage in puts (±1 V , ±2.5 V), cu rr en t inp u t (± 20 mA , r equ ir e s 1 25 [...]

Analog Input m odule 2- 14 ADAM 5000 IO modules Use r ’s Man ual Applicati on wiring Figure 2-11: T herm ocouple input[...]

Chapter 2 2 - 15 T echnical specificatio ns of AD AM-5018 Analog Input Channels Seven differential Input Type mV, V, m A , Therm ocouple Input Range ± 15 mV, ± 50 mV, ± 100 mV, ± 500 m V, ± 1 V, ± 2.5 V and ± 20 mA T/C Type and Temperature Range JKTERSB 0 to 760 °C 0 to 1370 °C -100 to 400 °C 0 to 1400 °C 500 to 175 0 °C 500 to 1750 °C[...]

Analog Output Module 3[...]

Analog Output Module 3- 2 ADAM 5000 IO modules User’ s Manu al 3.1 AD AM-5024 4-channel a nal og output mo dule The ADAM-5024 is a 4-ch annel analog output module. It receives its digital inpu t through the RS-485 interface of the ADAM-5510 system module f rom the host com puter . The format of the data is engineering un its. It then us es the D/[...]

Chapter 3 3- 3 Applicati on wiring Figure 3-2 : Analog output T echnical specificatio ns of AD AM-5024 Analog Output Channels Four Output Type V, mA Output Range 0-20mA, 4- 20m A , 0-10V Isolation Voltage 3000 Vdc Output Impedanc e 0.5 Ohms Accuracy ±0.1% of FSR for current output ±0. 2 % of FSR for voltage output Zero Drift Voltage output: ±30 [...]

Digital Input/Output Modules 4[...]

Analog Input m odule 4- 2 ADAM 5000 IO modules User’ s Manu al 4.1 AD AM-5050 1 6-channel universal digi tal I/O mod ule The ADAM- 5050 featu res sixteen digital i nput/output channels . Each channel can b e independe ntly configure d to be an input or an output channel by the setting of its DIP sw itch. Th e digital outputs are open collector t [...]

Chapter 4 4- 3 Applicatio n wiring Figure 4 - 3 : Dry contact si gnal input (ADAM-5 050) Figure 4- 4: W et contact signal i nput (A DAM-5050) Figure 4-5: Digital output used with SSR (ADAM-5050 /5056)[...]

Analog Input m odule 4- 4 ADAM 5000 IO modules User’ s Manu al T echnical specificatio ns of AD AM-5050 Points 16 Channel Setting Bitwise selectable by DIP swit ch Digital Input Dry C ontact Logic Level 0: close to GND Logic Level 1: o pen Wet Contact Logi c Level 0: +2 V m ax Logic Level 1: +4 V to 30 V Digita l Output Open collector t o 30 V, 1[...]

Chapter 4 4- 5 4.2 AD AM-5051 series digital inpu t modul e 4.2.1 AD AM-5051 (D) 16 -channel d ig ital i nput m odul e The ADAM-5 051 provides sixteen digit al input cha nnels. The ADAM- 5510 can use the modul e’ s digital inputs to determine the state of l i mit or saf et y switches or to receive remote digital signals. Figure 4-6: A DA M -5 0 5[...]

Analog Input m odule 4- 6 ADAM 5000 IO modules User’ s Manu al Figure 4-8: Contact closu re input (ADAM-505 1/5051D) T e chnical specificatio ns of AD AM-5051/5051D Points 16 Logic level 0: + 1 V max Digital input Logic level 1: + 3.5 to 30 V Pull u p current: 0.5 mA 10 k Ω resistor t o + 5 V Power consumption 0.3 W indicator ADAM-5 051 D only [...]

Chapter 4 4- 7 4.2.2 AD AM-5051S 16-channel Isolated Di gital Input Module with LED The ADAM-5051S provides 16 isolated digital input channels for critical environments need individual channel isolating protection. Different from o t h e r ADAM-5 000 I/O modules, ADAM-5051S desi gned with 21 pins pl ug terminal. Figure 4 - 9 : ADAM-50 51S module fr[...]

Analog Input m odule 4- 8 ADAM 5000 IO modules User’ s Manu al T e chnical specificatio n of AD AM-5051S Point 16(4- channel/group ) Digital Input Lo gic Level 0: + 3 V m ax Logic Level 1: + 10 to 50 V Optical Is olation 2500 V DC Opto-isolator response time 25 µs Over-volt age Protection 70 V DC Power Consumption 0.8 W LED Indicator On when act[...]

Chapter 4 4- 9 4.3 AD AM-5052 8-channel isolate d digital inpu t module The AD AM-5052 provides e ight fully i ndependent i solated c hannels. All have 5000 V RMS isolation to pr event ground loop effects and to pr e- vent damage from power surges on th e input lines. Figure 4-11: ADAM-5052 modu le frontal view Applicati on wiring Figure 4 - 1 2 : [...]

Analog Input m odule 4- 10 ADAM 5000 IO modules Use r ’s Man ual T echnical specificatio ns of AD AM-5052 Points 8 Differential Digital input Logic level 0: + 1 V ma x Logic level 1: + 3. 5 to 30 V Isolation voltage: 5000 V RMS Resistance: 3 k Ω / 0.5 W Power consumption 0.4 W T able 4 - 4: T echnical specifications of A DAM-5052[...]

Chapter 4 4- 11 4.4 AD AM-5055S 16 -channel Isolated Digital I/O Module with LED The ADAM-5056S provi des 8 isolated digital input and 8 is olated output channels for critical environments need individual channel isolati ng protection. Different from other ADAM-5000 I/O modules, ADAM-5051S d esig ne d wit h 21 pins plug terminal. Figure4-13 : ADAM-[...]

Analog Input m odule 4- 12 ADAM 5000 IO modules Use r ’s Man ual T echnical specificatio n of AD AM-5055S Points 16 Digita l Output 8 (8-channel/g roup) Open collector to 40 V 200 m A max load pe r channe l Optical Is olation 2500 V DC Opto-isolator response time 25 µs Supply Voltage 5 ~ 40 V DC Digital Input 8( 4-channel/gr oup) Dry Cont act Lo[...]

Chapter 4 4- 13 4.5 AD AM-5056(D) seri es digital ou tput modul e w / L E D 4.5.1 AD AM-5056(D) 16-channel digital output module w / L E D The ADAM -5056 features si xteen digital o utput channels. T he digital outputs a re open-collector t ransistor switche s that you can cont rol from the ADAM-5 000 main unit. Y ou also can use t he switches t o [...]

Analog Input m odule 4- 14 ADAM 5000 IO modules Use r ’s Man ual T echnical specificatio ns of AD AM-5056 There are 16-point digi tal input a nd 16-point di gital output modul es in the ADAM-5000 series. The addition of these solid state digital I/O devices allows these m odules to cont rol or m onitor the interfaces between high power DC or AC l[...]

Chapter 4 4- 15 Applicati on wiring Figure 4-18: ADAM-5 056S module wirin g diagram Points 16(8-ch annel/group) Digita l Output O pen co llector to 40 V 200 mA max load pe r channel Optical Is olation 2500 V DC Opto-isolator response time 25 µs Supply Voltage 5 ~ 40 V DC Power consumption 0.6 W LED Indicator On when active I/O Connector Type 21- p[...]

Analog Input m odule 4- 16 ADAM 5000 IO modules Use r ’s Man ual 4.5.3 AD AM-5056SO 16-channel Isolated Dig ital Output Module wi th LE D The ADAM-5 056SO pro vides 16 chan nels source type isolat ed digita l output f or critical environments need i ndividual chan nel isola ting protection. Addition to the source output wiring, all of the specifi[...]

Chapter 4 4- 17 T e chnical Specificatio n of AD AM-5 056SO Points 16(8-channel/g roup) Digita l Output Open collector to 40 V 200 m A max load per c hannel Optical Isol ation 2500 VDC Opto-i solator res pons e time 25 u s Supply Volt age 5 ~ 40 VDC Power consum ption 0.6 W LED Indi cator On wh en active I/O Conn ector Type 21-pin plug-term inal T [...]

Analog Input m odule 4- 18 ADAM 5000 IO modules Use r ’s Man ual 4.6 Relay Output Mod ules 4.6.1 AD AM-5060 relay output module The ADAM-5 060 relay output module is a low - cost altern ative to SSR modules. It provides 6 relay ch annels, two of Form A and four of Form C . Figure 4-21: ADAM-5060 modu le frontal view Applicati on wiring Figure 4-2[...]

Chapter 4 4- 19 T e chnical specificatio ns of AD AM-5060 Points 6, two Form A and four Form C Contact ratin g A C: 125 V @ 0.6A; 25 0 V @ 0.3 A D C: 30 V @ 2 A; 110 V @ 0.6 A Breakdown v olt age 500 V AC (50/60 Hz) Relay on time (typi c al ) 3 ms Relay off ti me (typic al) 1 ms Total switching time 10 ms Insulation resistance 1000 M Ω min. @ 500[...]

Analog Input m odule 4- 20 ADAM 5000 IO modules Use r ’s Man ual Applicati on wiring Figure 4-24: Rela y o utput T echnical specificatio ns of AD AM-5068 Points 8 Form A Contact Ra ting AC: 120 V @ 0.5 A DC: 30 V @ 1 A Breakdown V ol t age 500 V AC (50/60 Hz) Relay On T ime (typic al) 7 ms ec. Relay Off Time (t ypical) 3 msec. Total Switching Tim[...]

Chapter 4 4- 21 4.6.3 AD AM-5069 p ow e r relay output module The ADAM-5069 power relay output module p r ovides 8 relay channels of Form A. Switches can b e used to control the relays. Considered to user frien d ly, the ADAM-5069 also built with LED indicator for status reading easily. And it also provides a choi ce to clear or keep output statu s[...]

Analog Input m odule 4- 22 ADAM 5000 IO modules Use r ’s Man ual 4.7 Counter/Frequency Module Overview Compatible AD AM-5000 Se ries Ma in Un its ADAM-5 080 is a 4-chan nel counter/fre quency module designed to be impl emented within t he followin g Adva ntech ADAM-50 00 series main units: ADAM-5000/4 85 ADAM-5510 ADAM-5511 ADAM-5 510M ADAM-5 510[...]

Chapter 4 4- 23 Alarm Setting Function While i n count er mode, y ou can set alarm status--Disable and Lat ch. If you want to disable it, you can sel ect Disabl e. If Latch status i s selected, it means the Alarm status will be "latched " whenever the alarm b eing triggered. Once the alarm status being "latched," it will thereaf[...]

Analog Input m odule 4- 24 ADAM 5000 IO modules Use r ’s Man ual AD AM-5080 Applica tion Wiring Figure 4-27: Isolated Input Level Figure 4-28 : TTL Input Level[...]

Chapter 4 4- 25 AD AM-5080 Counter/Frequency Mode Selection Users can selec t Bi-direction, Up/Down Count er or Fre quency option as shown in Figure 44. Fi g u r e 4-29: Co u n t er / F re q u en c y M o d e Note: All four channels of ADAM-5080 will operate simultaneously i n the mode y ou have selected. i .e. If you switch t he ADAM- 5 08 0 to Cou[...]

Analog Input m odule 4- 26 ADAM 5000 IO modules Use r ’s Man ual Figure 4 - 3 0 : Wiring for Up/ Down Counting Note : If you need only on e type of counting , connect C0A+ and C0A- for Up C ounting onl y; or co nnect C0B+ and C0B- for Down Counting on ly . Bi-direction Counting For implem enting Bi-direct ion Counting, you need t o connect C0B+/D[...]

Chapter 4 4- 27 Features -- Frequenc y Mode If users want to select frequency mode, they can only utilize Up Counting typ e, and can only connect to C0A+ and C0A-. Figure 4 - 3 2: Wiring for Frequency Mode Features -- Alarm Setting According to your application pu rposes, you can run the utility pro gram to set different lim it va lues for High/Low[...]

Analog Input m odule 4- 28 ADAM 5000 IO modules Use r ’s Man ual Setting Initial Counter V alue In order to utilize the alarm function, users have to set a high-alarm limit value an d/or a low alarm limit value, and a in itial value to fulfill the requirements for a basic ala rm setting. Figure 4 - 3 4 : Sending Alarm Signal (recommended settings[...]

Chapter 4 4- 29 Getting the T otalizer V a lue If users want t o get the actual counter value, a form ula such as follows can facilitate an easy cal culation from the initial counter value, overfl ow value and cu rrent counter value: V tol = {|V ini - V mi n ( or V max ) |+ 1} x |V vf | + | V ini - V cur | V to l : to talizer value V in i : initial[...]

Analog Input m odule 4- 30 ADAM 5000 IO modules Use r ’s Man ual Features--Digital Output Map ping If users want to use Digital Output function, ADAM utility is av a i l ab l e for setting sp ecific ally which modu le, chann el or s lot to receive the al arm s i g n a l s . Figure 4 - 3 6 : Dig ital Output Mapping 1 : High Alarm State --Set Alarm[...]

Chapter 4 4- 31 TTL/Isolated Inpu t Level According to your need, y ou can sel ect either TTL or Isolated Input Level by setting the configuration fo r the jumpers. Select the proper jumper settings for either TTL or Isolated Input according to Figure 53. Please note that you must confi gure a ll six jumpers to the correct con- figuration for prope[...]

Analog Input m odule 4- 32 ADAM 5000 IO modules Use r ’s Man ual AD AM-5080 T e chnical Specification s Channel 4 Input Frequ ency 0.3 ~ 1000 Hz m ax. (Fre quency mode) 5000 Hz m ax. (Counte r mode) Input Level Isolated or TTL level Minim u m Puls e Width 500 µ sec. (Frequency m ode) 100 µ sec. (Counte r mode) Min i mu m In pu t Cu rr en t 2mA [...]

S e r i a l Communication M o d u l e 5[...]

Serial Communication Module 5- 2 ADAM 5000 IO modules User’ s Manu al Overview Compatible AD AM-5000 Se ries Ma in Un its The ADAM-5090 is a 4-port RS-232 communication module to be im ple mented wit h the followi ng Advant ech ADAM-500 0 series main unit s: ADAM-551 0 ( w it h li b r a ry V er si o n V 1 . 1 0 o r a bove) ADAM-551 1 (w i th l ib[...]

Chapter 5 5- 3 Communication Backup Function W ith the ADAM-5090 you can implement dual co mmunication channels between your PC and the ADAM sy stem. Even when one of the two communication channel s is down, your system can still function through the alternative communication channel. Th is dual comm unication channels can be impl emented by applic[...]

Serial Communication Module 5- 4 ADAM 5000 IO modules User’ s Manu al PIN Mapping PIN Name RJ-48 DB9 /DCD 1 1 RX 2 2 TX 3 3 /DTR 4 4 GND 5 5 /DSR 6 6 /RTS 7 7 /CTS 8 8 RI or +5V 9 9 GND 10 X T able 5 - 2: Pin Mapping AD AM-5090 T e chnical Specification Function Provides communication ports for the ADAM-5510 to integrate other devices with commun[...]

Chapter 5 5- 5 I/O Slots an d I/O P o r ts Numbe ring The ADAM-5090 m odu le provides four RS-232 por ts for communication with target devices. Th e ports are numbered 1 thr ough 4. For programming, the definition of port number de pends on the slot number and port number . For exam ple, the second port on the ADAM-509 0 in slot 1 is de fin ed to p[...]

Serial Communication Module 5- 6 ADAM 5000 IO modules User’ s Manu al LED Status of the AD AM-5090 Module There are two LEDs for each port on the front panel of the ADAM-5090 to display specific co mmunication status: a. Gr een LED (RX) : Data Re ceivin g Statu s; the LED indic ator is on wh en the port is receiving data. b. Orange LED (TX): Data[...]

Chapter 5 5- 7 port_set_spee d(1,1 15200L); //Enable Por t FIFO. He re we e nable 128 byte FIFO fo r port1. port_enable_fifo(1); //After these above settings are enabled, you can apply any other function lib rary to implement y our progra m. } —A receive-and-tran smit example pr ogram for the ADAM-5090 main() { int e rr_v alue, char c haract er p[...]

Analog I/O Modules Calibration 6[...]

Analog I/O Modules Calibration 6- 2 ADAM 5000 IO modules User’ s Manu al Analog i nput/output m odules are ca librated when you receive them. However , calibration is so metimes requ ired. No screwdri ver is necessary because calibration is done in software wi th calibration parameters stored in t he ADAM-5000 analog I/O m odule‘s onboard EEPRO[...]

Chapter 6 6- 3 Figure 6 - 2 : Zero ca libration 5 . Execute the Span Calibrati on command. This can be done wi th the ADAM utility so ftware. Figure 6 - 3 : Sp an calibration[...]

Analog I/O Modules Calibration 6- 4 ADAM 5000 IO modules User’ s Manu al 6 . CJC Cali bration (only for T/C input module) Figure 6 - 4 : Cold junction ca libration * Note: Zero calibration and span calibration must be completed be fo re CJC calibration. T o calibrate CJC, the thermocouple attached to A DA M- 501 8 a nd a s tan da rd th ermo me te[...]

Chapter 6 6- 5 Calibration v oltage (AD AM-5 017/5018) Module Input Range Code (Hex) Input Range Span Calibration Voltage 00h ±15 mV +15 mV 01h ±50 mV +50 mV 02h ±100 mV +100 m V 03h ±500 mV +500 m V 04h ±1 mV +1 V 05h ±2.5 V +2.5 V 06h ±20 m V +20 mA (1) 0Eh J thermocouple 0 to 1370°C +50 mV 0Fh K thermocouple 0 to 1370°C +50 mV 10h T the[...]

Analog I/O Modules Calibration 6- 6 ADAM 5000 IO modules User’ s Manu al Calibration v oltage (ADAM-5017H) Module Input Range Code (Hex) I nput Range Span Calibration Voltage 00h ±10 V +10 V 01h 0 ~ 10 V +10 V 02h ±5 V +5 V 03h 0 ~ 5 V +5 V 04h ±2.5 V +2.5 V 05h 0 ~ 2.5 V +2.5 V 06h ±1 V +1 V 07h 0 ~ 1 V +1 V 08h ±500 mV +500 mV 09h 0 ~ 500 [...]

Chapter 6 6- 7 6. 2 AD AM-5013 RTD Input Resistance Calibration 1 . Apply power to the module and let it warm up for abou t 30 minutes. 2 . Ma ke sure that the module is cor r ectly i nstalled an d is properly con- figured f or the input range you want to calibrate. Y ou can use the ADAM utility software to help in this. 3 . Connect th e correct re[...]

Analog I/O Modules Calibration 6- 8 ADAM 5000 IO modules User’ s Manu al Calibration resistances (ADAM-5013) Input Range Code (Hex) Input Range Span Calibration Resistance Zero Calibration Resistance 20 Pt, -100 to 100°C A = 0.00385 140 Ohms 60 Ohm s 21 Pt, 0 to 100°C A = 0.00385 140 Ohms 60 Ohm s 22 Pt, 0 to 200°C A = 0.00385 200 Ohms 60 Ohm [...]

Chapter 6 6- 9 6.3 Analog output module cali bration The output current of analo g output module s can be calibrated by using a low calibrati on value and a hi gh calibration val ue. The anal og output modules can be configured for one of two rang es: 0-20 mA and 4-20 mA. Since the low limit of th e 0-20 mA ran ge (0 mA) is in ternally an ab solute[...]

Analog I/O Modules Calibration 6- 10 ADAM 5000 IO modules Use r ’s Man ual 4 . Issue the Analog Dat a Out com mand to the m odule with an output va lue of 4 m A. 5 . Check the act u al output value at the m odules terminals. If thi s does not equal 4 mA, use the "Tri m" option i n the "Calibrate" submenu t o change the actual [...]