Delta AH500 series User Manual download pdf (Page 6)

Doc. Name:

Setting MODBUS RS-485 communication for Delta products

Rev.: 00

Doc. Code:

134A-P-D1410-APN002-EN

Page 6/11

(2) Setting a communication timeout and a delay time by means of a program

a. Communication timeout: SR210Set SM209 (COM1).

(COM2: SR213Set SM211.)

b. Delay time: SR1339

Example: The communication timeout set for COM1 on a PLC is changed to ten milliseconds, and the delay time set

for the PLC is changed to five milliseconds.

Figure 1 Program written for an AH500 series PLC

3.1.2 Network Module

Users can set the RS-485 parameters in the serial communication module AH10SCM-5A by means of ISPSoft.

Steps: Start HWCONFIG.Set the parameters in AH10SCM-5A. Set COM 1.Download the parameters to

AH10SCM-5A.

a. Start HWCONFIG in ISPSoft.

b. Open the Parameter Setting window by double-clicking AH10SCM-5A.

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Delta AH500 series User Manual Page 6