Gill Instruments Ltd
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MaxiMet
Page 77
Issue 3
Doc. No. 1957-PS-021
May 2018
2.
Select the COMMS Page
Protocol: Default is Gill
Select Modbus
Interface: Default is RS232
Select RS232 or RS4852W
RS232 will only allow a single point to point non multi drop
network connection. RS485 2 wire will allow networking with
up to 32 connected devices.
Baud Rate: Default is 19200
Select required Baud Rate
(9600 or 19200 supported)
Node ID: Default is Q
Not used for Modbus
Output Rate: Default is 1Hz
Set update rate for MaxiMet Data
Message Mode: Default is CONT Ensure that the setting is CONT mode; Message Mode POLL is
not applicable for Modbus use.
3.
When required settings have been selected click on Save Settings to Device
4.
Click on Yes and then OK.
5.
Power down the MaxiMet and apply power back to the MaxiMet to complete setting changes.
Note: Now that the unit is in Modbus mode if any further changes need to be made use the SAFE MODE
connection and method to re-establish communication with MetSet (See para 6.7).