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Informer Series C Overview
Informer-IP Series C
Federal Signal www.fedsig.com
Modbus TCP
Modbus® TCP can directly control and monitor speakers from an existing PLC over an
Ethernet network. This interface provides direct control of WAV files and relay output(s) in
the speaker. The interface also provides the ability to monitor the speaker’s digital inputs
and activation status.
Digital Coil Registers are used to monitor Activation Status, Digital Input Status, and
Time Synchronization Status. Analog Registers are used to play WAV files and activate
preprogrammed functions. Preconfigured programs and WAV files can be activated, relay
outputs can be controlled, and speaker status can be monitored.
The number of inputs for each Informer model are listed in “Table 1 Input and Output
Supported Protocols
Use the interface that supports the Modbus TCP protocol. Configure the Modbus interface
on the unit’s web page. There are two configuration options:
• Enable or Disable the Modbus interface
• The TCP port number
NOTE: Most systems use the default Modbus port number of 502.
Table 4 Coil Registers (1-9999) Read -Write
Coil data
address
Coil
number (0x)
Function
Value
0
1
Activation Status
0 = activation not detected, 1 = activation detected
(Status resets with each new function)
1
2
Input #1
0 = closed, 1 = open (State follows the physical input
port)
2
3
Input #2
0 = closed, 1 = open (State follows the physical input
port)
3
4
Input #3
0 = closed, 1 = open (State follows the physical input
port)
4
5
Input #4
0 = closed, 1 = open (State follows the physical input
port)
5
6
Time synchronization
status
0 = pass, 1 = fail
The software versions listed below are the minimum versions that support the Series C
Modbus interface. A firmware upgrade will be required to use the Modbus interface if the
RTU firmware is below these minimum requirements.
• DIGI v2.1.0.44
• IP15 v2.3.0.11
• IP100 v5.2.0.30
