Configuring Communication Ports; P770 Serial Protocols - Siemens Milltronics BW500 Operating Instructions Manual

11.3

Configuring Communication Ports

The BW500 and BW500/L communications ports are setup by a series of parameters (P770 –
P789) which are indexed by port.
The communication parameters are indexed to the following:
f
indicates the factory setting.
Note
Changes to these parameters are not effected until the power to the unit is turned off and
then back on.
11.3.1

P770 Serial protocols

The communications protocol used between the BW500 and BW500/L and other devices for the
selected port, ports 1 to 3 (P770-01 to –03).
The BW500 and BW500/L supports Siemens Milltronics' proprietary "Dolphin" data format, as
well as the internationally recognized Modbus standard in both ASCII and RTU formats. It also
supports direct connection of a printer.
The Siemens protocol is compatible with the Dolphin Plus configuration program. See the
Siemens web site for information on this PC product
(http://www.siemens.com/processautomation (http://www.siemens.com/processautomation)).
The Modbus protocol is an open standard developed by AEG Schneider Automation Inc.
Specifications are available from their web site (http://www.modicon.com/
(http://www.modicon.com/)).
Other protocols are available with optional SmartLinx cards.
Values
f (01 and 02)
0
f (03)
1
2 Modbus ASCII slave serial protocol
3 Modbus RTU slave serial protocol
4 printer
Note
BW500 and BW500/L must be in RUN mode to allow for the print operation.
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
Port
1
2
3
communications disabled
Siemens Milltronics "Dolphin" protocol
Communications
11.3 Configuring Communication Ports
Description
RS-232, Terminals 31 to 34
RS-485, terminals 35 to 40
RS-232, RJ-11 modular telephone
127