15
AT-MGS-402 User Manual
Figure 4-1 -
AT-MGS-402 Back of Lid Label
Using switch 1 (SW1) on the underside of the lid of the controller use setting 4 to acknowledge whether
the AT-MGS-402 will need to have the terminating resistor engaged. Please see Modbus protocol for best
practice.
Switch 1
Switch 2
MODBUS Setting
Action
MODBUS
Address
Setting
5
6
7
8
6
7
8
OFF
Parity Disabled
10
OFF
OFF
ON
ON
Parity Enabled
20
OFF
ON
OFF
OFF
Even Parity
30
OFF
ON
ON
ON
Odd Parity
40
ON
OFF
OFF
OFF
1 Stop Bit
50
ON
OFF
ON
