Monitoring And Programming Setup; Pc Communications; Modbus Communications - Kohler Industrial Generator Set Operation Manual

2.6 Monitoring and Programming
Setup
The user programmer can access the controller data
with the controller digital display or a personal computer
(PC) with optional SiteTecht software to monitor and/or
program. Access the controller system with a PC using
a USB cable with a mini USB plug.
Introduction, List of Related Materials for related
software literature.
While this manual focuses on data access through the
controller pushbutton/rotary selector dial and display,
most data entries require input using a PC for initial
setup. The PC entries typically include alpha characters
such as digital input descriptions.
2.6.1

PC Communications

Communicate between a PC and the generator set
controller logic using USB communication protocol. The
PC connections require optional SiteTecht software.
Contact your authorized
assistance.
Local Single Connection
A PC connects to the USB port of the generator set
controller using a mini USB connector. See Figure 2-14.
USB Cable
Personal
Computer
Figure 2-14 Local Single Connection
Remote Single Connection
A modem connects a PC to a single device. The PC
communicates with the device via telephone line or an
ethernet network. See Figure 2-15.
Modbusr is a registered trademark of Schneider Electric.
TP-6694 7/18
Refer to the
distributor/dealer for
Generator Set
Controller
Ethernet
Network
Personal
Computer
OR
with NIC
Personal
Telephone
Computer lines
Figure 2-15 Remote Single Connections
2.6.2 Modbusr Communications
The controller communicates using Modbusr as a slave
connection with the Modbusr master initiating the
communication. The controller seeks the system and
alternator parameters and diagnostic information then
responds back to the Modbusr master. In addition, the
controller accepts information to alter controller
parameters including generator set starting and
stopping. See Figure 2-16. Refer to the List of Related
Materials for available Modbusr literature.
Note: Only one Modbusr master can be connected to
the controller. Examples include the remote
serial annunciator, Monitor III, and switchgear
applications.
up to 1220 m (4000 ft.)
Generator Set
Controller
Figure 2-16 Modbusr Connections
Modbusr/
Ethernet
Converter
Generator Set
Controller or
Transfer
Switch Control
RS-232 to
Remote
RS-485 Port
Network
Converter
(Modem)
RS-485 up to 1220 m (4000 ft.)
RS-485
Modbus Master
r
Section 2 Operation 49