Siemens AS 488/TM manual AS 488 in Simatic design, Introduction, Technical Specifications

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AS 488 in SIMATIC design

Introduction

AS 488/TM

■Overview

The AS 488 automation system comprises:

•CPU 486-3/488-3 with memory modules, memory card and in- terface modules for commissioning, diagnostics and I & C monitoring

•DC 24 V power supply (standard); a module for AC 120/230 V can be inserted as an option (the AC 120/230 V power supply is only possible if no TELEPERM M I/O modules are used)

•One or two EXM 478 extension modules (depending on system design and configuration) with IF 964-DP interface modules for connection of ET 200 distributed I/Os (one or two lines) and the PROFIBUS-TM system bus (PROFIBUS-TM and CS 275 local bus can only be connected as alternatives) and for the PLC/PLC coupling

•TPM 478 as additional option in conjunction with a further TBX 478 module, located between the DC 24 V power supply module and the CPU, for connection of up to seven I/O units with I/O modules of the TELEPERM M process control system

•As an alternative to the PROFIBUS-TM, the CS 275 system bus can also be connected via the TPM 478 module.

■Technical Specifications

System configuration

Basic system	SIMATIC M7-400 with
	CPU 486-3 (75 MHz Pentium),
	rack and AC or PC power supply
	module
Extensions	IF 961-DIO, IF 962-COM,
	IF 964-DP (max. 4), EXM 478
	(max. 2), TPM 478 and TBX 478
	interface modules
Option	CPU 488-3 as alternative
	(120 MHz Pentium)
Power supply
Supply voltage	Current con-	Dissipated
	sumption	power
AC 120/230 V, 10 or 20 A	0.8 to 2.5 A	45 to 60 VA
DC 24 V, 10 or 20 A	1.5 to 4.5 A	45 to 60 W
Backup battery for time/date	2 Li batteries type AA: 3.6 V,
	1.9 Ah
Maintenance cycle	2 years
System data
TELEPERM M I/Os
• Function modules, arithmetic mod-	Yes
ules
• Signal modules	Yes
• Counter modules	Yes
• Coupling modules	Yes
• Max. number of TELEPERM M ex-	7
tension units
• Max. number of ES 100 K extension	Max. 1 in addition
systems
Distributed I/Os	Max. 2 x 122 units (stations)
Transfer data	Max. 122 byte in/out per station
ET 200M
• Function modules	Yes, e.g. counters, SIWAREX M
	(option)
• Signal modules	Yes
• Counter modules	Yes
• Coupling modules	Yes, e.g. IM 157 (PROFIBUS-
	PA), CP 340 (RS 232), CP 343-2
	(AS-I), CP 342-5 (DP slave inter-
	face)
ET 200S

• Function modules	Yes, e.g. counters
	Required special drivers on
	request 1)
• Signal modules	Yes
• Coupling modules	Yes
ET 200iS (available soon)
• Function modules	Yes, e.g. counters
	Required special drivers on
	request 1)
• Signal modules	Yes
• Coupling modules	Yes
ET 200X
• Signal modules	Yes

5/2 Siemens PLT 112 · 2002