ProSoft Technology 5202-DFNT-MCM4 - Manual (Page 22)

MCM ♦ ProLinx Gateway MCM Protocol Configuration
Modbus Master/Slave Driver Manual
Page 22 of 80
ProSoft Technology, Inc.
October 16, 2009
3.1.14 Minimum Response Delay
0 TO 65535
This parameter is used only when the port is configured as a slave. It sets the
number of milliseconds to wait before responding to a command received on the
port from a remote Master. This delay is sometimes required to accommodate
slower Master devices.
3.1.15 Use CTS Line
Y ES or N O
This parameter specifies if the Clear To Send (CTS) modem control line is to be
used or not. If the parameter is set to N
O , the CTS line will not be monitored. If
the parameter is set to Y ES , the CTS line will be monitored and must be high
before the gateway will send data. Normally, this parameter is required when
half-duplex modems are used for communication (2-wire). This procedure is
commonly referred to as hardware handshaking.
3.1.16 Response Timeout
0 TO 65535 milliseconds
This parameter sets the command response timeout period in 1 millisecond
increments. This is the time that a port configured as a Master will wait for a
response from the addressed slave before re-transmitting the command (Retries)
or skipping to the next command in the Command List. The value to set depends
on the communication network used and the expected response time (plus a little
extra) of the slowest device on the network.
3.1.17 Retry Count
0 to 10
This parameter specifies the number of times a command will be retried if it fails.
3.1.18 Internal Slave ID
0 TO 255
When the port is configured as a slave, this parameter defines the virtual Modbus
slave address for the port. Any commands received on the slave port, addressed
to the node address entered here, will be processed by the gateway. Each slave
device on the network must be assigned a unique address.