Siemens AS 235 appendix Simatic S5/S7 central controllers

This catalog is out of date, see note on page 1

Coupling with other systems

SIMATIC S5/S7 central controllers

Serial coupling

with SIMATIC S5/S7 central controllers

AS 235, AS 235 H, AS 235 K, ES 100 K

I/O bus

.

..

Channel 1

Channel 2

SIMATIC

central controllers

S5-115U/-135U/-155U

CP 524 /

CP 544

SIMATIC automation systems S7-400 / S7-300

Ascreened, four-conductor cable twisted in pairs is used for data transmission. The maximum distance between the interface module and the central controller is 1000 m. Data transfer is sequential via a coupling link with 20-mA current loop. The chan- nel-specific transmission rate can be adjusted in steps:

Transmission rate	Max. coupling line length
300, 600, 1200, 2400 bits/s	1000 m
4800 bits/s	500 m
9600 bits/s	300 m

Data transfer between the AS 235 central processing unit and the interface module 6DS1 333-8AB is handled via the S5KS and S5KE driver blocks in the automation system. The 3964 or

3964 R transmission procedure (selectable) is used for data

Interface module	CP 441-2 CP 341
6DS1 333-8AB
	max. 1000 m

Fig. 7/3 Coupling of automation systems with SIMATIC S5/S7 central controllers

Serial coupling with SIMATIC S5/S7 central controllers

￿In certain cases it may be advantageous to assign autonomous parts of an automation program to a subordinate automation level. There is less loading on the automation system, and valu- able calculation time can be saved. This is especially important in the case of automation tasks with short cycle times which may place a heavy loading on the calculation capacity of a proces- sor. Subordinate programs can also be developed and tested independently of other program sections.

The following are required to couple the AS 235, AS 235 H and AS 235 K automation systems to SIMATIC S5-115U, S5-135U and S5-155U central controllers and SIMATIC S7-300 and S7-400 automation systems:

•interface module for

SIMATIC S5/S7 central controllers 6DS1 333-8AB

• Connecting cable 6DS8 137-8..

•For SIMATIC S5:

CP 524 communications processor 1) 6ES5 524-3UA15 CP 544 communications processor1) 6ES5 544-3UA11

•For SIMATIC S7-300:

CP 341 communications processor 2) 6ES7 341-1BH00-0AE0 with 20-mA (TTY) interface

•For SIMATIC S7-400:

CP 441-2 communications
processor 2)	6ES7 441-2AA02-0AE0

transmission between the interface module and the SIMATIC S5/S7 central controller.

RK 512 is used as the protocol. The SIMATIC S5 sends or fetches the data by means of messages. The TELEPERM M interface module is the passive participant in the communica- tion. S7 central controllers operate with SEND/RECEIVE and S5 analog-value format.

Further information

•Catalog ST 50

for SIMATIC S5 central controllers and CP 524/544 communications processors

•Catalog ST 70

for SIMATIC S7 central controllers and

CP 341/441-2 communications processors

The interface module 6DS1 333-8AB can be inserted into any slots for I/O modules of an AS 235 automation system or an ES 100 K extension system. A SIMATIC S5/S7 central controller can be connected to each of its 2 channels.

1)See Catalog ST 50 for interface modules, parameterization tools and acces- sories

2)See Catalog ST 70 for interface modules, parameterization tools and acces- sories

7/8 Siemens PLT 111 · 1999