2protocol functional specifications – ProSoft Technology 5202-DFNT-DFCM4 User Manual
Page 13

DFCM ♦ ProLinx Gateway
Protocol Functional Specifications
DF1 Master/Slave
Driver Manual
ProSoft Technology, Inc.
Page 13 of 88
October 15, 2010
2
Protocol Functional Specifications
2.1
Functional Specifications - DF1 Master/Slave
The DF1 Master/Slave Protocol driver provides extensive support for both Master
and Slave implementations of the protocol. The serial port on the module is user-
configurable to support the DF1 protocol (Master or Slave, Error Checking,
Baud rate, and so on).
DF1 General Specifications
Internal Database
10000 registers (words) available
Communication parameters
Local Station ID: 0 to 254
Ports 1 to 3 Baud Rate: 110 to 115K baud
Stop Bits: 1
Data Bits: 8
Parity: None, Even, Odd
RTS Timing delays: 0 to 65535 milliseconds
Error Checking
BCC and CRC
Miscellaneous
Full hardware handshaking control, providing
radio, smart modem and multi-drop support
Floating point data supported
DF1 Master
The ports on the module can be individually configured as Master ports. When
configured in master mode, the DFCM module is capable of reading and writing
data to remote DF1 devices.
DF1 Modes
Full-Duplex - Master (Module generates
commands)
Half-Duplex - Polling
Command List
Up to 100 commands per Master port, each fully-
configurable for function, slave address, register
to/from addressing and word/bit count
Polling of Command List
User-configurable polling of commands, including
disabled, continuous, and on change of data (write
only)
Configurable Parameters per
Master port
Min Command Delay
Number of Commands
Response Timeout
Retry Count
Slave List Error Pointer