User's Manual

Siemens PLT 130
.
1994
4/7
Interface module for 20-m local bus (N-S5)
Description and ordering data
1 LED F (red), signals faults (line protocol faulty,
receiver memory overflow)
2 LEDs (green)
D signals ”Data transfer on bus”
M signals ”Interface module has master function”
T signals ”Bus processor busy”
B indicates setting of interface module on bus B
A indicates setting of interface module on bus A
3 DIP switch for function and address settings
4 DIP switch for function and address settings
5 Front plug for 20-m local bus
6 Base plug for connecti on to SIMATIC S5 bus
Fig. 4/7 Interface module for 20-m local bus (N-S5)
Application
The module is used to connect a SIMATIC S5-155U program-
mable controller (CPU 946/947 or CPU 948) to the CS 275 bus
system.
The KSN-S55 coupling software must be installed in the pro-
grammable controller. It enables the controller to be matched to
the requirements of bus communication.
The module handles duties specifically connected with data
transmission, including occasional control of data transfer.
Design
Compact subassembly , double height, with 2 base plugs and 1
front plug.
Front panel width 20.32 mm = 1
1/3 standard slots.
Possible plug-in slots:
Central unit 155U (CPU 946/947), slots 35, 43, 75, 83 and 107
to 131
Central unit 155U (CPU 948), slots19, 35, 51 and 67 to 131.
Mode of operation
Data received via the CS 275 bus system pass through the line
protocol controller of the bus interface logic in bit-serial mode
and are placed into intermediate storage. The microprocessor
reads the data byte-by-byte and stores them in the buffer
memory of the module. Up to 70 complete messages can be
stored in the buffer memory.
As soon as sufficient space is available in the dual-port RAM for
a complete message, this is entered into the receiver order list
of the dual-port RAM. Transmit messages are transferred from
the function blocks of the KSN-S5E coupling software to the
dual-port RAM system interface and entered into the transmitter
order list.
Setting of addr
ess
In order to differentiate between the individual interface modules
in the autonomous bus system, each interface module must be
allocated a so-called participant address. In order to differenti-
ate between several autonomous buses connected via bus cou-
plers, each interface module must be allocated a bus address.
These two addresses are set via DIP switches on the front panel
of the interface module.
Technical data
Power supply DC 5 V
Current consumption 1.8 A
Interfaces
-- B a s e p l u g
-- Front plug
Central unit of SIMATIC S5-155U
programmable controller
Redundant 20-m local bus output,
open col lector, asymmetric,
for connection of a cable connector
with metal front plug and contact points
Weight Approx. 0.5 kg
Ordering data
Order No.
Inter fa ce module for 20-m l oca l bus (N-S5 ), 6DS1 206-8AA
8bit
KSN-S55 coupling software See Catalog PLT 150
Instructions
Interface module for 20-m local bus (N-S5) Order No.
German C79000--B8000--C181
English C79000--B8076--C181
French C79000--B8077--C181
Spanish C79000--B8078--C181
Created with "Chameleon CMYK PDF Creator" for Wolfgang Strozyk at Siemens AG
This catalog is out of date, see note on page 2