Siemens SIMODRIVE 611 universal Function Manual page 107

01.99 05.00
! 611ue diff !
3.3 Parameterizing using the parameterizing and start–up tool SimoCom U
3. Cable
4. Terminating resistor for the RS485 bus
Example: Communications from a PG/PC to 3 "SIMODRIVE 611 universal" con-
Communications trol boards (2–axis versions) should be possible via the serial interface.
between the PG/PC Online operation between a PG/PC and the individual control boards
and 6 drives must be realized via an RS232/RS485 converter and the appropriate
via RS485 cabling on the RS485 side, so that the drive can go online at any time.
Assumptions for the example:
S
S
S
S
E Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
– RS232 connecting cable
Cable between the PG/PC and interface converter
(cable diagram: refer to Chapter 2.5)
– RS485 connecting cable
Cable between the RS232/RS485 interface converter and the
nodes to establish an RS485 link
(cable diagram: refer to Chapter 2.5 or Fig. 3-10)
Generally applies:
First and last node ––> terminating resistor switched–in
Other nodes on the bus ––> terminating resistor switched–out
(switch S1, refer to Chapter 1.3.2)
The recommended RS232/RS485 converter is used (PC/PPI cable).
Set all of the switches at the converter to "0".
The serial interface must be set to RS485 for all drives (P0801 = 1).
Setting the drive number (P0802)
– 1st board Drive A: Drive number for RS485 = 4
Drive B: Drive number for RS485 = 2
– 2nd board Drive A: Drive number for RS485 = 7
Drive B: Drive number for RS485 = 8
– 3rd board Drive A: Drive number for RS485 = 5
Drive B: Drive number for RS485 = 3
Terminating resistor for the RS485 bus
– Interface converter:
––> Switch–in the terminating resistor
or solder into the socket (refer to Fig. 3-10)
– 1st and 2nd board:
––> Switch–out the terminating resistor
– 3rd board:
––> Switch–in the terminating resistor
3 Parameterizing the Board
First node
No first or last node
Last node
3
3-107