Operating Instructions

Commissioning
Configuring communication
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Siemens A5E36496664A_f
Smart Infrastructure 2021-10-11
6.5 Configuring communication
 You are currently performing, or have already completed, basic commissioning.
1. When you reach the appropriate stage of basic commissioning, select the
macro (MacPar) 108 (USS fieldbus), 109 (Modbus), 110 (BACnet) or 114 (P1
fieldbus).
2. If the basic commissioning has already been performed, change the value
manually, for example:
P0010 = 1 (parameter filter quick commissioning)
P0015 = 108 (macro 108)
P0010 = 0 (parameter filter ready)
3. If the communication function is only to monitor the drive, but not to control it,
proceed as follows:
4. Basic commissioning with macro 108, 109, 110 or 114.
5. P0010 = 1 (parameter filter quick commissioning)
P0015 = 12 (macro 12, control via digital input and analog setpoint)
P0010 = 0 (parameter filter ready)
The "Unit switchover" function is not permissible with this system.
RS485 interface
For information about integration in Desigo, see Engineering Manual TX G120P
(document ID: CM110576).
1. Connect the variable speed drive to your fieldbus via the RS485 interface. This
connector has short-circuit proof, isolated pins.
2. Connect the bus terminating resistor for the first and last stations.
When the bus is operating, the first and last bus station must be continuously
connected to the supply. The maximum cable length is 1200 m (3300 ft).
NOTICE
Supply the Control Unit with 24 V DC via terminals 31 and 32 to enable
communication to continue to take place with the controller when the line voltage
is switched off.
See also Chapter CU230P-2-BT Control Unit [➙ 22].
Interfacing to a network