Effective 10/2004
Page 83I.L. 70C1036H05
Appendix I MODBUS TRANSLATOR Wiring
The Digitrip 1150 in a Magnum Circuit Breaker can communicate its data using Modbus RTU protocol by
employing a mMINT device to act as a translator from INCOM communicationto MODBUS
communications. A Modbus master device is shown wired to gather data and can provide control
logic to open and close circuit breakers.
The mMINT module CAT # mMINT use DIN rail mounting. Connector types are
plug-in-Phoenix. . Power is 5 pin. INCOM network uses a 3 pin. The RS-485 MODBUS
uses a 4 pin connector which consist of signals A, B, COMmon and SHielD.
Three Baud rates of 1200, 9600 or 19200 are selectable via programming switch for the
MODBUS network. The INCOM Baud rate is fixed at 9600 Baud.
B-2
B-1
1
Magnum Circuit Breaker
2
Digitrip 11 50
B-2B-1
Magnum Circuit Breaker
Digitrip 11 50
3
mMINT
B COM SHD
Modbus Master
COM Inv Non Invert Input
2
3
1
4
Control voltage is 120 VAC ± 20% or 48 - 125VDC.
Communication Cable is C-H style 2A957805G01 or Belden 9463 cable.
The overall network will support up to 32 devices with any addresses from 1 to 247
Terminating resistor is 121 ohm 1 watt. Use the mMINT switches to insert these terminators at the mMINT device.
Notes:
4
4
Courtesy of NationalSwitchgear.com
To Next Page
Loading...
Need help?
General
