Installation guide

Page 17 of 51
ProtoCarrier 485 (FPC-CD2)
RS-485 Signal LEDs
The RS-485 Signal LEDS are each labeled and correspond to the respective data lines
sent from the ProtoCessor. The following signals are provided. RS-485 TX and RS-485
RX.
2.1 Modbus
The DynaFlame/DynaForce is equipped with a standard ICP Modbus port through a 3-pin
connector that interfaces to the following RS-485 signals:
Table 3: Connection Terminals
Signal Terminal
Data + (a) 1
Data – (b) 2
Serial transmission mode on the Modbus network is RTU mode. Message format has the
following characteristics:
Table 4: DynaFlame/DynaForce SOLA Data Transmission Specifications
Coding system 8-bit binary
Number o
f data bits per character
10
1 Start bit
8 data bits, no parity bit
1 stop bit
Bit transfer rate 38400 bps
Duplex Half Duplex
Error Checking 2 byte CRC-16 polynomial
Bit transfer order LSB first
End of message Idle line for 3.5 or more characters