GW-7838-M (Modbus TCP Server to M-Bus Master Gateway) User Manual
Version 1.01
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3.3.3 Add
The second way to add meter configuration to GW-7838-M is using “Add” function. The “Add”
function can add meter of EN-13757 protocol or CJ/T-188 protocol into GW-7838-M. Refer below
operation example for detail setting step.
Step1: Press “Add” button and select the protocol of the meter. There are two protocols,
EN-13757 and CJ/T188 for select. Input the meter serial number and M-Bus network polling
cycle time. Then press “OK” to connect to the meter.
Some meters supported several data group, this calls subcode. If the data of user needs at
different subcode, user can input the subcode number at “Application reset subcode” field. There
can add several different subcode in one meter. If user needs not the subcode field, please keep
it empty. The below example is using subcode 0x01.
Note: The meter serial number of EN-13757 is 8 numbers, and the serial number of CJ/T188 is
14 numbers.