Communication Setup Submenu - Kohler 500EOZCS Operation

1.8.2

Communication Setup Submenu

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 1-9. 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, monitoring software, and
switchgear applications.
up to 1220 m (4000 ft.)
Generator Set
Controller
up to 15 m (50 ft.)
Figure 1-9 Modbusr Connections
A controller can communicate directly to a Modbusr
master or participate in a network of devices. It can also
be used to interface a local master to a network of
devices.
Modbusr is a registered trademark of Schneider Electric.
TP-7126 5/20
RS-485
Modbus r Master
RS-232
The Modbusr master polls slave devices for data.
Controller devices are slaves. Examples of master
devices are a personal computer running monitoring
software and the remote serial annunciator.
SiteTech
Group Parameter
Modbus
Address Use a unique network address
between 1 and 247 for each unit.
Use 1 for a single connection.
Do not use 0 (zero).
Baud rate 9600, 19200, 38400, or 57600.
Must match the master PC and all
devices in the system.
Figure 1-10 Decision-Makerr 3500 Communication
Parameters
Select the baud rate. Choose the same baud rate for the
Modbusr master, modems, and connected devices.
See Figure 1-10.
Each generator set controller must have a unique
Modbusr address and PGEN node number (1- 4).
Note: The PGEN node number is automatically
determined. The number of nodes online should
match the number of installed generators.
Note: The PGEN baud rate should not be adjusted
except under direction from a factory service
representative. Different baud rates between
controllers on the network will result in a loss of
communication on the network.
Setting
Section 1 Specifications 35