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CONFIGURATION
4
Configuration
All user configurable items are controlled by two (2) groups of switches, and a setup program
to modify additional configuration parameters. The AT Series Communications Module
must be reset, after changes have been made, for them to take effect. To reset
communications, either press the RESET button (SW10) on the A12 pc board, or turn off
then turn on, both the ac input (CB1) and dc output (CB2) circuit breakers.
S1 is used to configure the communications interface. S2 is used to set the device address for
Modbus. Setting S1-1 to enable the Setup Program, allows modification to additional
configuration parameters.
4.1
DIP Switch Settings
S1 Configuration
Position
DIP S1-1
DIP S1-2
DIP S1-3
DIP S1-4
DIP S1-5
DIP S1-6
DIP S1-7
DIP S1-8
*
- -NOTICE- -
S2 Modbus Network Address Selection
Switch Position
DIP S2-1
DIP S2-2
DIP S2-3
DIP S2-4
DIP S2-5
DIP S2-6
DIP S2-7
DIP S2-8
Modbus Slave Address Table
Slave
Address
1
1
0
2
0
3
0
4
0
5
0
6
0
255
1
14
Description
Setup Program
Configuration
Parameters*
Protocol
Modbus Protocol
Serial Port
RS-232 Handshaking
Baud Rate
Ethernet Enable
See Configuration Parameters Below
Address bit
Net addr b7
Net addr b6
Net addr b5
Net addr b4
Net addr b3
Net addr b2
Net addr b1
Net addr b0
DIP S2
2
3
4
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
"ON" position
"OFF" position
Enabled
Disabled
User Values
Factory Default
Values
DNP
Modbus
ASCII
RTU
RS-485
RS-232
Enabled
Disabled
19200 bps
9600 bps
Enabled
Disabled
6
7
8
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
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