3 Digital I/O Modules
2-30
MICRO/I Hardware Manual
3.1 Using Digital I/O Modules
The inputs and outputs on the digital I/O modules are mapped to following device address locations within the
MICRO/I. The device name and symbol vary based on the model.
To monitor the inputs and control the outputs, the Expansion Inputs(#I), Expansion Outputs(#Q), Digital Input(LEX)
and Digital Output (LEY) are used.
The Expansion Inputs(#I), Expansion Outputs(#Q), Digital Input(LEX) and Digital Output(LEY) are octal-based,
meaning that only numbers 0 to 7 are used in their addresses.
Address numbers are assigned in ascending order from Slot 1. However, if a unit has four input/output ports, address
numbers 0 to 3 are assigned to each, and address numbers 4 to 7 cannot be used.
3
Digital I/O Modules
HG3G
HG2G-5F
HG5G-V HG4G-V
HG3G-V
HG2G-V
HG2G-5T
HG4G
HG1G HG1P
HG2J-7U
Type No.
Device Name
Symbol
HG5G/4G/3G/2G-V
Expansion Inputs
#I
Expansion Outputs
#Q
HG4G/3G, HG2G-5F
Digital Input
LEX
Digital Output
LEY
When entering the control device, enter "#" before the symbol (device type). In addition, on the Device
Monitor a "#" is displayed before the symbol.
Example: Setting I100 as a control device
#I100
Inputs and outputs of Digital I/O modules can also be controlled and monitored using the word devices
#WI, #WQ, WLEX and WLEY. #WI, #WQ, WLEX and WLEY are useful for batch control of inputs and
outputs. For details about allocation of address number, refer to Chapter 35 “Internal Devices” in the
WindO/I-NV4 User's Manual.
