This catalog is out of date, see note on page 1
Automation systems
AS 235 K
Basic system
AS 235 K automation system
The AS 235 K automation system is the compact version of the AS 235 system. Both systems use the same central unit modules, interface modules and I/O modules. They also have the same range of functions.
The AS 235 K system is fully operable on its own without any extensions. Since the number of I/O modules which can be plugged into the AS 235 K system is limited to 6, however, the AS 235 K is usually used together with ES 100 K extension systems (see page 3/21).
Basic system
The AS 235 K automation system is available for AC 230 V and DC 24 V supply voltages. The basic system of the AS 235 K automation system comprises:
•ES 902 subrack
–For AC 230 VC79451-A3260-A16
–For DC 24 VC79451-A3260-A17 each with
power supply subrack with slots for
power supply and alarm logic modules, 6 slots for I/O modules 1),
process connection panel for I/O modules 1 to 6, mounting plate with slots for
2 connector boards AF “Remote bus” and slots for 2 bus converters UI,
power supply unit,
cable clamping rail with 10 clamps
•Power supply module SV1
For AS 235 K with AC 230 V: |
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– AC 230 V / DC 24 V | |
For AS 235 K with DC 24 V: |
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– DC 24 V / DC 24 V | |
• Power supply module SV2, |
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DC 24 V / DC 5 V | |
• Alarm logic module | 6DS1 |
• Bus terminator module | |
• Flashing pulse generator | 6DS1 |
• Central processing unit with |
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– Central processor module | 6DS1 |
– EDC memory module 4000 Kbyte | 6DS1 |
– Backup battery for memory module | |
– AS 235 system software, version G | 6DS5 |
– Interface module for I/O bus 1 | 6DS1 |
• Interface module for mini floppy disk unit | 6DS1 |
• Interface module for operation channel 1 | 6DS1 |
The subrack of the AS 235 K system corresponds to the ES 902 system and is 15 U high. It is the supporting system for the other components of the basic system, the bus components, and the I/O modules.
The front of the subrack contains a process connection panel for the process signal cables with
Two power supply modules are used for the basic system:
•Power supply module SV1
One of the following modules is used depending on the selected supply voltage for the AS 235 K:
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–
Both designs are equipped with 3 sockets via which 2 process operation keyboards and a mini floppy disk unit can be pow- ered with DC 24 V.
•Power supply module SV2
The power supply module SV2
Communication
via CS 275 plant bus
| SV | SV | M B |
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| 4(6) I/O | ZE |
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| PA |
| UI1 UI2 |
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| AF1 | AF2 | E |
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| GS |
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| I/O bus |
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SV | M |
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| 13 I/O |
| MO | MO |
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SV | M |
| PBT, ST |
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13 I/O |
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modules |
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| PA |
| DR |
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| AF | Connector board for remote bus |
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| BT | Flashing pulse generator |
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| DR | Printer |
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ES 100 K (max. 8) | E | Power supply unit | ||||
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| GS | Basic system |
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| ML | Alarm logic module |
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| MO | Monitor |
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| PA | Process connection panel |
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| PBT | Process operation keyboard |
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| ST | Configuring keyboard |
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| SV | Power supply module |
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| UI | Bus converter |
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| ZE | Central unit |
Fig. 3/7 AS 235 K automation system, system configuration
The alarm logic module monitors the
The flashing pulse generator has the following functions:
•Generation of a flashing signal which is required by the
I/O modules of the TELEPERM ME process control system for alarm display. The flashing signal is fused in the flashing pulse generator
•Lamp test for the fault display of the I/O modules which are supplied with the flashing signal
•Electrical isolation of external time synchronization signals. The AS 235 K can be synchronized using a minutes pulse.
1)If I/O slot 6 is used, the interface module for I/O bus 2 (B) is required in addition. See AS 235 K functions for Ordering data.
3/18 | Siemens PLT 111 · 1999 |
