Why choose C&M Engineering

Because end-users look for more than an equipment supplier. C&M stands by its clients over the entire plant lifecycle, delivering professional services to ensure safe, stable, and efficient operations.

Module range

SIMATIC S7-300

Signal Modules

Signal modules are the interface of SIMATIC S7-300 to the process. A host of different digital and analog modules provide exactly the inputs/outputs required for each task.

Digital and analog modules differ as regards the number of channels, voltage and current ranges, electrical isolation, diagnostics and alarm functions, etc.

Digital input   Analog input
Module Voltage range Number of channels Module Measuring range Resolution Number of channels
SM 321 24 VDC 16, 32 SM 331 Voltage Up to 16 bits 2, 8
SM 321 48-125 V DC 16 SM 331 Current
(also HART)
Up to 16 bits 2, 8
SM 321 24/48 VUC 16 SM 331 Resistance Up to 16 bits 1, 4, 8
SM 321 120/230 V DC 8, 16, 32 SM 331 Thermocouple elements Up to 16 bits 2, 8
  SM 331 Resistance The Up to 16 bits 1, 4, 8

 

Digital inputs/out   Analog input/output
Module Voltage range Number of channels Module Measuring range Resolution Number of channels
SM 323 24 VDC 8 or 16 DI and DO SM 334 Voltage Up to 13 bits 2, 4
SM 327 24 V DC 8 DI and 8 DX (parameterized as input or output) SM 334 Current
(also HART)
8 bits 4
  SM 334 Resistance 13 bits 4
SM 334 Resistance thermocouple 15 bits 4
SM 335 Voltage 14 bits 4
SM 335 Current 14 bits 4

 

Digital output   Analog output
Module Voltage range Current range Number of channels Module Measuring range Resolution Number of channels
SM 322 24 VDC 0.5A 8, 16 SM 332 Voltage Up to 16 bits 2, 4, 8
SM 322 24 V DC 2A 8 SM 332 Current
(also HART)
Up to 16 bits 2, 4, 8
SM 322 48-125 V DAC 1.5A 8  
SM 322 120/130 V AC 1A 8, 16, 32
SM 322 120/130 VAC 2A 8
SM 322 UC (relay) 0.5A-5A 8, 16
 

 

 

 

Automation consultancy

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Design Services

Native RTL SupportC&M Engineering will design your system to your requirements and hardware preferences. C&M''s automation experts can design, upgrade, customize and troubleshoot your system

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Docs / Support

Docs / SupportIn addition to comprehensive documentations in PDF format, you also get AUTOCAD drawings and your control software's for back-up purposes.

Consultancy services

Easy to startWe offer technology, industry expertise and business process best practices that will enable you to empower your workforce and achieve breakthrough levels of customer satisfaction, organizational effectiveness, worker productivity, and profitability.

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