I/O Modules

value of 4 mA.

5.Check the actual output value at the modules terminals. If this does not equal 4 mA, use the "Trim" option in the "Calibrate"sub- menu to change the actual output. Trim the module until the mA meter indicates exactly 4 mA, or in the case of the voltmeter with shunt resistor, trim until the meter indicates exactly 1 V. (When calibrating for 20 mA using a voltmeter and shunt resistor, the correct voltage should be 5 V.)

6.Issue the 4 mA Calibration command to indicate that the output is calibrated and to store the calibration parameters in the module's

EEPROM.

7.Execute an Analog Data Out command with an output value of 20 mA. The module's output will be approximately 20 mA.

8.Execute the Trim Calibration command as often as necessary until the output current is equal to exactly 20 mA.

9.Execute the 20 mA Calibration command to indicate that the present output is exactly 20 mA. The analog output module will store its calibration parameters in the unit's EEPROM.

4.6Digital Input/Output Modules

ADAM-5050 16-channel universal digital I/O module

The ADAM-5050 features sixteen digital input/output channels. Each channel can be independently configured to be an input or an output channel by the setting of its DIP switch. The digital outputs are open- collector transistor switches that can be controlled from the ADAM- 5510/P31. The switches can also be used to control solid-state relays, which in turn can control heaters, pumps and power equipment. The ADAM-5510/P31 can use the module’s digital inputs to determine the state of limit or safety switches, or to receive remote digital signals.

Warning! A channel may be destroyed if it is subjected to an input signal while it is configured to be an output channel.

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ADAM-5000

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Advantech RS-485 user manual Digital Input/Output Modules, ADAM-5050 16-channel universal digital I/O module