Smartgen APC715 - Cummins Gcs-Modbus; Cummins Qsm11

APC715 Pump Unit Controller
APC715 Pump Unit Controller ISSUE 2013-08-28 Version 1.0 Page 53 of 62
12.5 CUMMINS GCS-MODBUS
It is suitable for GCS engine control module. Use RS485-MODBUS to read information
of engine. Engine types are QSX15, QST30, QSK23 / 45/60/78 and so on.
Terminals of controller
D-SUB connector 06
Remark
Fuel relay output
5&8
Outside expand relay, when
fuel output, making port 05
and 08 of the connector 06 be
connected.
Start relay output
-
Connect to starter coil directly
Terminals of controller
D-SUB connector 06
Remark
RS485 GND
20
CAN communication shielding
line(connect with ECU
terminal only)
RS485+
21
Impedance 120Ω connecting
line is recommended.
RS485-
18
Impedance 120Ω connecting
line is recommended.
Engine type: Cummins QSK-MODBUS, Cummins QST-MODBUS, Cummins
QSX-MODBUS
12.6 CUMMINS QSM11
Terminals of controller
OEM connector of engine
Remark
Fuel relay output
38
Start relay output
-
Connect with starter coil
directly
CAN GND
-
CAN communication shielding
line(connect with controller’s
this terminal only)
CAN(H)
46
Impedance 120Ω connecting
line is recommended.
CAN(L)
37
Impedance 120Ω connecting
line is recommended.
Engine type: common J1939