Siemens ST PCS 7 manual Central I/O modules, 11/4

© Siemens AG 2007

Process I/O

Central I/O

Central I/O modules

■Overview	■Selection and Ordering Data		Order No.
	SM 421 Digital Input Modules
		• 32 inputs, 24 V DC	6ES7 421-1BL01-0AA0
		• 32 inputs, 120 V AC/DC	6ES7 421-1EL00-0AA0
		• 16 inputs, 24 V DC,	6ES7 421-7BH01-0AB0
		with process/diagnostics inter-
		rupt
		• 16 inputs, 24 to 60 V AC/DC,	6ES7 421-7DH00-0AB0
		with process/diagnostics inter-
		rupt

Signal modules from the SIMATIC S7-400 range can be used in the SIMATIC PCS 7 automation system if necessary. These are primarily an alternative to use of distributed I/Os in the case of small applications or systems with a small distributed configura- tion.

For SIMATIC PCS 7, the I/O modules listed in the Ordering data have been selected from the range of S7-400 signal modules.

Notes:

Apart from these selected modules it is also possible to use - with limitations in functions - all other I/O modules from the cur- rent range of S7-400 signal modules.

All process data from the I/O are available for PCS 7 engineering in the CFC, and can be graphically interconnected to the signal name in the signal list. Diagnostics information is generated au- tomatically when using the I/O modules listed here.

When using other I/O modules, integration in SIMATIC PCS 7 is limited to the process data, i.e. the full scope of diagnostics functions is not automatically available. These modules can

11 therefore only be used meaningfully in SIMATIC PCS 7 if the diagnostics capability can be omitted.

Online modifications and redundancy are not supported by the central I/O.

■Technical specifications

You can find the detailed technical data of the S7-400 modules at the following points:

•Catalog ST 70 or

•on the Mall/CA 01 under "Industrial automation systems / Con- trollers / SIMATIC S7"

• 16 inputs, 120/230 V AC/DC,	6ES7 421-1FH20-0AA0
inputs according to IEC 1131-2
Type 2
SM 422 Digital Output Modules
• 32 outputs; 24 V DC, 0.5 A	6ES7 422-1BL00-0AA0
• 32 outputs, 24 V DC, 0.5 A;	6ES7 422-7BL00-0AB0
with diagnostics
• 16 outputs, 24 V DC; 2 A	6ES7 422-1BH11-0AA0
• 16 outputs; relay contacts	6ES7 422-1HH00-0AA0
• 16 outputs, 120/230 V AC; 2 A	6ES7 422-1FH00-0AA0
SM 431 Analog Input Modules
• 16 inputs, non-floating, 13 bit
	6ES7 431-0HH00-0AB0
• 8 inputs, floating, 13 bit	6ES7 431-1KF00-0AB0
• 8 inputs, floating, 14 bit, with	6ES7 431-1KF10-0AB0
linearization (RTD/TC)
• 8 inputs, floating, 14 bit	6ES7 431-1KF20-0AB0
• 16 inputs, floating, 16 bit; pro-
	6ES7 431-7QH00-0AB0
cess interrupt capability, with
diagnostics interrupt
• 8 inputs, floating, 16 bit; process	6ES7 431-7KF00-0AB0
interrupt capability, for thermo-
couples, with diagnostics inter-
rupt
• 8 inputs, floating, 16 bit; process	6ES7 431-7KF10-0AB0
interrupt capability, for thermal
resistors, with diagnostics inter-
rupt
SM 432 Analog Output Modules
• 8 outputs, floating, 13 bit; for	6ES7 432-1HF00-0AB0

±10 V, 0 to 10 V, 1 to 5 V,

±20 mA, 0 to 20 mA, 4 to 20 mA

Front Connector (1 unit)
• With screw contacts	6ES7 492-1AL00-0AA0
• With spring clamps	6ES7 492-1BL00-0AA0
• With crimp contacts	6ES7 492-1CL00-0AA0	B)

B) Subject to export regulations: AL: N, ECCN: EAR99H

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Siemens ST PCS 7 · November 2007