Read I/O

Parameter Introduction

Calculation Parameters

Parameter	Range	Default Value	Description	Illustration
Target			Select device from the device list Note: Available devices must meet 2 conditions: 1. Device belongs to I/O group; 2. Device is enabled
Line	All/DI 0-15	All	All: All DI ports on the I/O board DI 'X': DI port with specified number on the board

Exception Troubleshooting

No.	Exception Information	Corresponding Parameter	Solution
1	Parameter "xxx" cannot be empty	Parameter name	Input the xxx parameter.
2	Device "xxx" does not exist	Device name	Modify device parameters or add corresponding device.
3	Failed to read DI port status		Unknown exception, check I/O device status.