ProSoft Technology MVI56-103M User Manual
Page 119

MVI56-103M ♦ ControlLogix Platform
Reference
IEC 60870-5-103 Master Communication Module
User Manual
ProSoft Technology, Inc.
Page 119 of 152
February 22, 2013
[Section]/Item
Value
Range
Description
Session Count:
1 to 32
This parameter specifies the maximum
number of sessions to establish on the
module. This corresponds to the number of
slaves to communicate with the module. This
value represents the total number of slaves
on both ports, combined.
[Section]/Item
Value
Range
Description
[IEC 60870-5-103
MASTER PORT x]
Settings for each communication port on
module
Baud Rate:
Value for baud
rate
This parameter specifies the baud rate to be
used on the communication channel (port).
Values from 110 baud to 115200 bps are
permitted. Maximum specified rate is 19200
bps.
Parity:
None, Odd,
Even
This parameter sets the parity to be used on
the port. The values correspond to the
following settings: N=None, O=Odd, E=Even.
Note: the specification requires only Even
Parity be used.
RTS On:
0 to 65535
The parameter sets the RTS presend delay.
The value entered represents the number of
milliseconds the module will wait after setting
the RTS modem line before sending the
data.
RTS Off:
1 to 65535
This parameter sets the RTS off delay. The
value entered represents the number of
milliseconds the module will wait after the
data packet is sent before dropping the RTS
modem line.
Minimum Delay:
1 to 60000
This parameter specifies the minimum
number of milliseconds to delay before
sending the message (setting RTS high).
This can be used when the serial network
requires time for units to turn off their
transmitters.
Receive Timeout:
1 to 65535
This value represents the number of
milliseconds to wait on a port from the time
the first character is received until the last
character in the longest message received
on the port. This parameter should be set
dependent on the baud rate. A value of 2000
should work with most applications.
Single char ACK F0,1 or
3:
Yes or No
This parameter specifies if the single E5
character will be used for ACK messages.
[Section]/Item
Value
Range
Description
[IEC-103 MASTER
SESSION x]
Settings for each session utilized
Communication Port:
0 or 1
This parameter sets the port to which the
controlled device is connected. On this
module, values of 0 and 1 are permitted.