SEC 3120 16-bit Modbus Manual
Page 6 Of 46
Sensor Electronics Corporation
For Version 1.2 and above
December 2012
P/N 1580282, Rev. 1, 20121228
Modbus 3120 Unit Read/Write Registers
Unit Clock- Write New Time Registers
Unit Clock- Set New Time Now
Unit Diagnostics Control (force relays on/off, toggle LEDs to flash)
Unit- Place into Modbus listen only mode
Unit- Restore out of Modbus listen only mode
SEC 3120 Setup and Configuration
(Bottom View of SEC 3120- Relay Board Connectors)
SEC 3120 Modbus RS-485 Network Connections
Pin 5 (RS485 B) of the SEC 3120 power and communication connection block P5
is typically connected to a Modbus Master device (RX-) terminal in two-wire
connections. For the EGX-100 Gateway, this would be Pin 4 of the RS485
connection block.
Pin 4 (RS485 A) of the SEC 3120 power and communication connection block P5
is typically connected to a Modbus Master device (RX+) terminal in two-wire
connections. For the EGX-100 Gateway, this would be Pin 3 of the RS485
connection block.
The EGX-100 Gateway is connected to the Ethernet using its Ethernet port and
10/100 base T/TX cable to an Ethernet switch.
Pin1
Pin7
Pin4
Pin5
Connector
Block P5
Summary of Contents for SEC 3000
Page 15: ...Doc 1460003 Rev A Operation Manual SEC 3000 Electro Chemical Gas Sensor Page 12 of 13 ...
Page 54: ...Part Number 3100 EXP MANUAL REV 11 20141007 FIGURE 4 SEC 3100 SEC Millenium Mounting ...
Page 55: ...Part Number 3100 EXP MANUAL REV 11 20141007 FIGURE 5 SEC 3100 SEC 3000 Mounting ...
Page 56: ...TB 1 J1 TB 2 J2 1 6 1 6 1 4 1 6 TB 5 J5 TB 6 J6 ...
Page 148: ...SEC 3120 Wiring TB 1 P3 TB 2 P6 1 6 1 6 1 2 3 4 1 2 3 4 7 6 5 4 3 2 1 TB 3 P1 TB 4 P5 ...
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Page 400: ...SEC P N 1460014 Rev ECO A 000209 Page 12 of 26 ...
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