Generac Power Systems Power Zone 410 Owner's Manual page 24

Installation and Operation
Configuring Modbus Master
See Figure 3-35. The Power Zone Gateway can connect to external systems over RS-485 and RS-232 as a Modbus
Master. This mode of operation is required for SNMP service for the target device, Transfer Switch. Screen for Modbus
Master configuration is identical for the interfaces, shown below is settings on RS-485 interface.
NOTE: SNMP service is configured with the Ethernet Built In interface. See
Protocol).
A
B
C
D
E
M
Letter Setting Name
A Port Name - port currently being configured
B Mode - Modbus Master currently selected
C Baud Rate - serial port setting (300bps - 115kbps)
D Parity - serial port setting (none, even, odd, mark, space)
E Stop Bit - serial port setting (1,2)
F Add Device - press to add device to communicate with. Up to 30 devices can be added.
G Device Type - (Transfer Switch)
H Device Name - assign friendly name to device
J Modbus Unit ID - id of device added (1-125)
K Modbus Password - password required to communicate with device added
L Remove Device - press to remove device
M Apply Changes- press to have changes take effect, including when removing device
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This will change and identify which interface is being configured; RS-232 or RS-485.
Figure 3-35. Serial Port Interface - Modbus Master
SNMP (Simple Network Management
F
L
Owner's Manual for Power Zone Gateway on PZ 410
G
H
J
K
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