the control system in dynamic processes can be limited with regard to time using the Control
system monitoring function.
While valid Modbus requests are registered, the controller resets the time monitoring. Never-
theless, after 30 minutes have elapsed, all level bits are re-initialized to “autonomous“ when
an error has occurred.
Warning!
You are required to follow the relevant standards and regulations concerning lightning and
overvoltage protection on installation.
Functions
WE Configuration
Modbus 1 CO6 -> F01 - 1
Modbus16-bit addressing 0 CO6 -> F02
Modem function 0 CO6 -> F03 - 0
Control system monitoring 0 CO6 -> F07
Parameters*
WE Parameter level / Range of values
Station address (ST.-NR) 255 PA6 / 1 to 247 with CO6 -> F02 - 1: 1 to 32000
Baud rate (BAUD) 9600 PA6 / 19200, 9600
* –> section 9.3 (Description of communication parameter settings)
9.3 Description of communication parameter settings
Station address (ST.-NR)
This address is used to identify the controller in bus or modem mode. In a system, each con-
troller needs to be assigned a unique address.
Baud rate (BAUD)
In a bus system, baud rate refers to the transfer speed between control system and controller.
In modem mode, baud rate refers to the transfer speed between controller and modem.
The baud rate adjusted at the controller must correspond with the baud rate of the control
system, otherwise no communication can be established.
Cyclical initialization (I)
This parameter defines the period of time for a cyclical issue of the initialization command
“ATZ“. The command is not issued during dial-up or when connected. “ATZ“ causes the pro-
file 0 to be copied to the active profile, provided the modem parameters have been set and
saved in profile 0 using a suitable terminal program. With CO6 -> F04 - 1, cyclical initial-
ization of the modem is not required.
EB 5579 EN 121
Communication
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