Seneca Z-TWS4 User Manual page 148

This page shows a table containing a row for each Modbus RTU Slave modules configured in the Z-
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NET4 /Straton project; each row contains the following information:

a progressive index

the Modbus Slave Address

the name of the serial port (i.e. COM1/COM2/COM4) which the module is connected to

the type of module

the module status, which can be:
o "OK", if the module is correctly responding to Modbus requests
o "TIMEOUT", if the module is not responding to Modbus requests
o "ERROR", if any other error occurs
The Modbus Modules page can't be shown in the following situations:

if a Z-NET4 project is not loaded on the Device

if TWS/PLC services are not running

if a PLC application is not running, i.e. not present or stopped
As an example, for the third of the above cases, the following message is shown:
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For information on Z-NET4 SW, please see chapter 20.
USER MANUAL – Z-TWS4/Z-PASS2-S/S6001-RTU
148