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. 746-5870
Mfr. Part No.6ES7231-7PC22-0XA0
BrandSiemens
$2,359.93
Each
units
S7-200 Series RTD Input - Analogue - 4 - - - - 80mm 71.2mm 62mm -
RS Stock No. 709-9681
Mfr. Part No.4825 0204
BrandSocomec
$861.93
Each
units
DIRIS A40, DIRIS A41, DIRIS A60 Communication - - Ethernet - - - - - - - - -
RS Stock No. 611-9548
Mfr. Part No.FX2N-8EX-ES/UL
BrandMitsubishi
$217.36
Each
units
FX3U Series Power Supply - - Digital, Relay, Transistor 8 8 → 64 100 → 240 V ac, 24 V dc Yes - 90mm 350mm 87mm -
RS Stock No. 872-6312
Mfr. Part No.6GK7243-1BX30-0XE0
BrandSiemens
$895.63
Each
units
S7-1200 Series Communication Processor - - - - - 5 V dc - - 30mm 110mm 75mm -
RS Stock No. 806-7070
Mfr. Part No.TM3XREC1
$209.55
Each
units
Modicon M2xx Communication - - - - - 24 V - - - - - -
RS Stock No. 510-1467
Mfr. Part No.CJ1W-MAD42
BrandOmron
$966.46
Each
units
SYSMAC CJ Series Input/Output - Analogue Analogue 4 2 10 V dc - - 90mm 31mm 65mm -
RS Stock No. 401-488
Mfr. Part No.CP1W-20EDT1
BrandOmron
$328.90
Each
units
PLC Module Input/Output - Voltage Transistor 12 8 24 V dc - - 90mm 86mm 50mm -
RS Stock No. 401-434
Mfr. Part No.CP1W-40EDT1
BrandOmron
$689.99
Each
units
PLC Module Input/Output - Voltage Transistor 24 16 30 V dc - - 110mm 150mm 50mm -
RS Stock No. 746-5861
Mfr. Part No.6ES7231-0HF22-0XA0
BrandSiemens
$1,552.59
Each
units
S7-200 Series Input - Analogue - 8 - 0 → 10 V dc - - 80mm 71.2mm 62mm -
RS Stock No. 810-4169
Mfr. Part No.6ES7241-1AH32-0XB0
BrandSiemens
$251.89
Each
units
S7-1200 Series Communication - RS232 RS232 1 - - - - 100mm 30mm 75mm -
RS Stock No. 709-9672
Mfr. Part No.4825 0203
BrandSocomec
$433.31
Each
units
DIRIS A40, DIRIS A41, DIRIS A60 Communication - - Ethernet - - - - - - - - -
RS Stock No. 872-6309
Mfr. Part No.3RK7271-1AA30-0AA0
BrandSiemens
$187.75
Each
units
S7-1200 Series Communication - Current, Voltage Current, Voltage - 1 32 V dc - - 36mm 110.5mm 75mm -
RS Stock No. 746-6612
Mfr. Part No.6ES7331-1KF02-0AB0
BrandSiemens
$909.34
Each
units
SIMATIC S7-300 Series Input - Analogue - 8 - - - - 125mm 40mm 117mm -
RS Stock No. 781-6912
Mfr. Part No.FX2N-8AD
BrandMitsubishi
$1,074.07
Each
units
FX2N Series Input/Output - Analogue Digital 8 8 24 V dc - - 105mm 75mm 75mm -
RS Stock No. 405-6192
Mfr. Part No.4825 0092
BrandSocomec
$403.57
Each
units
DIRIS A40, DIRIS A41 Communication - - - - - - - - - - - -
RS Stock No. 489-4871
Mfr. Part No.151238
BrandMitsubishi
$142.37
Each
units
Alpha 2 Series Analogue Extension - Analogue Relay, Transistor 2 10 24 V dc - - 35.5mm 90mm 32.5mm -
RS Stock No. 806-7082
Mfr. Part No.TM3SAC5R
$531.45
Each
units
Modicon M221, Modicon M241, Modicon M251 Communication - - - - - 24 V - - - - - -
RS Stock No. 401-563
Mfr. Part No.CP1W-8ED
BrandOmron
$221.43
Each
units
PLC Module Input/Output - Voltage - 8 - 30 V dc - - 90mm 66mm 50mm -
RS Stock No. 746-3023
Mfr. Part No.CS1WEIP21
BrandOmron
$2,524.83
Each
units
CS1 Series Ethernet/IP Unit - - - - - 5 V - - 130mm 35mm 101mm -
RS Stock No. 746-6659
Mfr. Part No.6ES7332-7ND02-0AB0
BrandSiemens
$1,504.15
Each
units
S7-300 Series Output - - Analogue - 4 24 V dc - - 125mm 40mm 120mm -
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