Check Modbus Rtu Device Communication Status; Check Polling Status Of Modbus Command - ICP DAS USA MDC-211-ZT User Manual

2.6.

Check Modbus RTU Device Communication Status

The user can view and monitor the status of each Modbus command directly on the
MDC-211-ZT Web interface. This section describes how to check the Modbus command
status, real-time monitor the I/O channel status of Modbus RTU device, and inquire the
relationship for the Modbus RTU device I/O and the MDC-211-ZT Internal Register address.

2.6.1. Check polling status of Modbus command

Click "I/O Information" → "Internal Register", the browser will load the Modbus
command real-time information as Figure 2.12, the descriptions please see Table 2.2.
Figure 2.12 Modbus Command Communication real-time Status page
Item Description
ID
Modbus RTU Slave Module Station number
MDC-211-ZT Modbus Command Polling order and corresponding
Number
Internal Register order
Remote
Modbus RTU Slave Module Register address
MDC-211-ZT
MDC-211-ZT Internal Register address
Status
Modbus Command Polling status
If want to inquire the Modbus command communication status between MDC-211-ZT and
Modbus RTU devices, please refer to the "Status" item:
Table 2.2 I/O information real-time display description
ICP DAS, MDC-211-ZT user manual , v1.0
Copyright © 2018 by ICP DAS. All rights are reserved.
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