Siemens AS 235 appendix Parallel coupling with S5-135U/155U I/O modules

This catalog is out of date, see note on page 1

Coupling with other systems

SIMATIC S5 expansion units

Parallel coupling with

S5-135U/155U I/O modules

AS 235,

AS 235 H,

AS 235 K,

ES 100 K

I/O bus

Channel 1

Connecting cable 721-0

Channel 2

EU 183U	CC-AS
	IM 312-3
			2 m
		couplingCentral	lengthcabletotalMax.
EU 183U	CC-AS
	IM 312-3
CC/EU-AS 310
EU 183U	CC-AS
	IM 300-3

All connecting cables 721-0

	EU 184U	CC-AS
	EU 187U
	EU 184U	IM 312-5
		CC-AS
	EU 187U
		IM 312-5
CC/EU-AS 310
	EU 183U	CC-AS
		IM 300-5
	Terminator

EU SIMATIC S5 expansion unit EU-IM Expansion unit interface module

Interface module 6DS1 321-8AA

Max. 500 m (distributed coupling)

Fig. 7/2 Coupling of automation systems with SIMATIC S5-135U/155U I/O modules, fitted in SIMATIC S5 expansion units

CC-IM Central controller interface module

Parallel coupling with

￿SIMATIC S5-135U/155U I/O modules

The SIMATIC S5-135U/155U I/O modules provide the user of the TELEPERM M process control system with a further comprehen- sive range of I/O modules for optimizing the field connections.

Of major advantage is that signal voltages up to 250 V can be used with these I/O modules, and that the coupling level other- wise required with TELEPERM M can be omitted. However, intel- ligent SIMATIC S5 I/O modules are not suitable for coupling with

TELEPERM M.

The following are required to couple the AS 235 automation sys- tems to SIMATIC S5 I/O modules of compact design in EU 183U expansion units:

•Interface module for

SIMATIC S5 expansion units6DS1321-8AA

• Connecting cable 721	6ES5 721-0..
• CC/EU interface module IM 310	6ES5 310-3AB11
• Terminator	6ES5 760-0AA11

An EU 183U expansion unit can be directly connected via each of the two channels of interface module 6DS1 321-8AA. Further EU 183U expansion units can be connected to this either cen- trally or distributed. EU 184U and EU 187U expansion units can only be connected centralized (see Catalog ST 50). The number of SIMATIC S5 I/O modules which can be coupled to an inter- face module is limited, however, by the maximum addressing volume of 2 x 256 bytes (256 bytes per channel).

Note:

An EU 185U or EU 186U expansion unit cannot be used instead of the EU 183U. The EU 185U / EU 186U are only partially suit- able for coupling. They can only be used if they are directly oper- ated as the only unit without central expansion.

Up to 6 interface modules 6DS1321-8AA with a total of 12 usable channels can be operated per AS 235 automation system.

The interface module can be inserted into any slot for I/O mod- ules of an AS 235 automation system or ES 100 K extension sys- tem.

The module has two bit-parallel RS 422 interfaces via which direct access (without intermediate storage) is possible to the SIMATIC S5-135U/155U I/O modules. The CC/EU interface module IM 310 is used for the coupling at the SIMATIC end. This is inserted into slot 3 of the EU 183U expansion unit.

The maximum distance between the interface module

6DS1 321-8AA and the last expansion unit is 500 m with a dis- tributed coupling.

Data transfer between the central processing unit of an AS 235 automation system and the SIMATIC S5-135U/155U I/O mod- ules is handled by the driver blocks AA and AE for analog values and the drivers A110 and E 110 for binary values.

The maximum permissible difference in the M potential between the AS 235 automation system and the expansion unit is 7 V.

See page 7/7 for interface module 6DS1 321-8AA.

Siemens PLT 111 · 1999 7/5