PLC Expansion Modules

PLC expansion modules (as used with programmable logic controllers) are the ideal solution for the acquisition and management of applications that include PLCs. They read and condition data from strain gaugeload and communicate basic weight data back to the processor.

What are PLC expansion modules used for?

PLC expansion modules are used in a wide range of applications such as non-automatic weighing machines, measuring of crane and cable loads, force measuring, platform scales and crane scales. To connect PLC expansion modules, a communication cable must be used to connect the module's PLC expansion port to the PLC. The primary task of an expansion module is the measurement and conversion of sensor voltage into a weight value.

Types of PLC expansion modules

PLC expansion modules are available in single or dual configurations. Other designs are available for more specialist applications such as dispenser/filler models or feeder control models. The different variables to choose from include number of inputs and outputs, voltage category, range and application.


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Description Price For Use With Module Type Range Input Type Output Type Number of Inputs Number of Outputs Voltage Category Memory Available Memory Length Width Depth Application
RS Stock No. 453-2545
Mfr. Part No.6ES7331-7KF02-0AB0
BrandSiemens
$1,802.11
Each
units
S7-300 Series - - Analogue - 8 - 24 V dc - - 125mm 40mm 120mm -
RS Stock No. 113-446
Mfr. Part No.7MF4997-1DB
BrandSiemens
$1,376.16
Each
units
DS3 Series, P300 Series Modem - - - - - - - - - - - -
RS Stock No. 872-6306
Mfr. Part No.3RK7243-2AA30-0XB0
BrandSiemens
$642.04
Each
units
- Communication - - - 496 496 - - - 36mm 100mm 75mm -
RS Stock No. 746-6680
Mfr. Part No.6ES7350-1AH03-0AE0
BrandSiemens
$899.87
Each
units
S7-300 Series Counter - - - - - 5 V dc, 24 V dc - - 125mm 40mm 120mm -
RS Stock No. 668-3125
Mfr. Part No.6ES7232-4HA30-0XB0
BrandSiemens
$254.56
Each
units
S7-1200 Series Output - - Analogue - 1 10 V dc - - 62mm 38mm 21mm -
RS Stock No. 746-6696
Mfr. Part No.6ES7352-1AH02-0AE0
BrandSiemens
$1,558.45
Each
units
S7-300 Series Cam-Operated Control - Digital Digital 4 13 24 V dc - - 125mm 80mm 120mm -
RS Stock No. 746-6151
Mfr. Part No.6GK7277-1AA10-0AA0
BrandSiemens
$295.23
Each
units
S7-1200 Series Compact Ethernet Switch, Compact with S7 1200 4 Port - - - - - 24 V dc - - 100mm 45mm 75mm -
RS Stock No. 746-5870
Mfr. Part No.6ES7231-7PC22-0XA0
BrandSiemens
$1,707.82
Each
units
S7-200 Series RTD Input - Analogue - 4 - - - - 80mm 71.2mm 62mm -
RS Stock No. 872-6312
Mfr. Part No.6GK7243-1BX30-0XE0
BrandSiemens
$848.87
Each
units
S7-1200 Series Communication Processor - - - - - 5 V dc - - 30mm 110mm 75mm -
RS Stock No. 746-6606
Mfr. Part No.6ES7323-1BL00-0AA0
BrandSiemens
$1,062.20
Each
units
S7-300 Series - - Digital Digital 16 16 24 V dc - - 125mm 40mm 120mm -
RS Stock No. 810-4169
Mfr. Part No.6ES7241-1AH32-0XB0
BrandSiemens
$220.79
Each
units
S7-1200 Series Communication - RS232 RS232 1 - - - - 100mm 30mm 75mm -
RS Stock No. 872-6309
Mfr. Part No.3RK7271-1AA30-0AA0
BrandSiemens
$171.17
Each
units
S7-1200 Series Communication - Current, Voltage Current, Voltage - 1 32 V dc - - 36mm 110.5mm 75mm -
RS Stock No. 746-6602
Mfr. Part No.6ES7323-1BH01-0AA0
BrandSiemens
$532.84
Each
units
S7-300 Series - - Digital Digital 8 8 24 V dc - - 125mm 40mm 120mm -
RS Stock No. 746-5861
Mfr. Part No.6ES7231-0HF22-0XA0
BrandSiemens
$1,123.14
Each
units
S7-200 Series Input - Analogue - 8 - 0 → 10 V dc - - 80mm 71.2mm 62mm -
RS Stock No. 746-6612
Mfr. Part No.6ES7331-1KF02-0AB0
BrandSiemens
$927.53
Each
units
SIMATIC S7-300 Series Input - Analogue - 8 - - - - 125mm 40mm 117mm -
RS Stock No. 746-6687
Mfr. Part No.6ES7341-1CH02-0AE0
BrandSiemens
$1,782.61
Each
units
S7-300 Series Communication Processor - - - - - 24 V dc - - 40mm 125mm 120mm -
RS Stock No. 788-7006
Mfr. Part No.7MH4960-2AA01
BrandSiemens
$857.81
Each
units
SIMATIC S7-1200 Weighing - Digital Analogue, Digital 4 5 24 V dc - - 70mm 75mm 100mm -
RS Stock No. 746-6659
Mfr. Part No.6ES7332-7ND02-0AB0
BrandSiemens
$1,300.13
Each
units
S7-300 Series Output - - Analogue - 4 24 V dc - - 125mm 40mm 120mm -
RS Stock No. 746-6545
Mfr. Part No.6ES7321-1CH20-0AA0
BrandSiemens
$642.59
Each
units
S7-300 Series Input - Digital - 16 - 48 → 125 V dc - - 125mm 40mm 120mm -
RS Stock No. 746-6646
Mfr. Part No.6ES7332-5HB01-0AB0
BrandSiemens
$749.83
Each
units
S7-300 Series Output - - Analogue - 2 24 V dc - - 125mm 40mm 120mm -