How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
The Schneider Electric XPSMCMCO0000S1 is a Modicon MCM safe communication expansion module that adds one RS485 port, via a 4-way connector, to an XPSMCM safety controller for safe inter-controller communication. It connects over the backplane expansion connector and cannot operate stand-alone, reaching Category 4 / PL e per ISO 13849-1 and SIL 3 per IEC 61508 over a maximum 50 m cable distance.
Unlike the CANopen, EtherCAT, EtherNet/IP and Modbus TCP/IP modules in the MCM range, the XPSMCMCO0000S1 carries safe RS485 communication rather than non-safe diagnostics - it reaches Category 4 / PL e per ISO 13849-1 and SIL 3 per IEC 61508 for linking safety controllers, not just reporting status. It expands an existing Modicon MCM safety controller CPU over the backplane bus and cannot run stand-alone; its 50 m maximum cable distance is shorter than the non-safe fieldbus modules, so route it accordingly within the panel or cell.
The XPSMCMCO0000S1 fits machines that chain two or more XPSMCM safety controllers together - for example a conveyor line split into zones - where each controller's safety decision still needs to reach the next one over a certified safe link rather than a monitoring-only network.
| Range of product | Modicon MCM |
|---|---|
| Product or component type | Safe communication expansion module |
| Device short name | XPSMCM |
| [Us] rated supply voltage | 24 V - 20...20 % DC |
| Power dissipation in W | 3 W |
|---|---|
| Safety level | Can reach category 4 conforming to ISO 13849-1, Can reach PL = e conforming to ISO 13849-1, Can reach SIL 3 conforming to IEC 61508, Can reach SILCL 3 conforming to IEC 62061 |
| Quality labels | CE |
| Range compatibility | Preventa XPSMCM |
| Connector type | 4 ways RS485 |
| Number of port | 1 |
| Communication port protocol | RS485 |
| Current consumption | 0.125 mA |
| Maximum cable distance between devices | 50 m |
| Local signalling | LED green with PWR marking for power ON, LED green with RUN marking for operating, LED red with E IN marking for internal error, LED red with E EX marking for external error |
| Connections - terminals | 2 captive screw clamp terminals, removable terminal block |
| Cable cross section | 0.2…1.5 mm² - 24 AWG...16 AWG flexible cablewithout cable end, 0.2…2.5 mm² - 24 AWG...14 AWG flexible cablewithout cable end, 0.25…1 mm² - 23 AWG...18 AWG flexible cablewith cable end, without bezel, 0.25…2.5 mm² - 23 AWG...14 AWG flexible cablewith cable end, with bezel, 0.25…2.5 mm² - 23 AWG...14 AWG flexible cablewith cable end, without bezel, 0.5…1.5 mm² - 20 AWG...16 AWG flexible cablewith cable end, with double bezel, 0.2…1 mm² - 24 AWG...18 AWG solid cablewithout cable end, 0.2…2.5 mm² - 24 AWG...14 AWG solid cablewithout cable end |
| Mounting support | Omega 35 mm DIN rail conforming to EN 50022 |
| Width | 22.5 mm |
| Height | 99 mm |
| Depth | 114.5 mm |
| Net weight | 0.3 kg |
| Product certifications | cULus, RCM, TÜV |
|---|---|
| IP degree of protection | IP20 |
| Ambient air temperature for operation | -10…55 °C |
| Ambient air temperature for storage | -20…85 °C |
| Relative humidity | 10…95 % |
| Pollution degree | 2 |
| Insulation | 250 V AC between power supply and housing conforming to IEC 61800-5-1 |
| Overvoltage category | II |
| Electromagnetic compatibility | Electrostatic discharge immunity test - test level: 6 kV (on contact) conforming to IEC 61000-4-2, Electrostatic discharge immunity test - test level: 20 kV (on air) conforming to IEC 61000-4-2, Susceptibility to electromagnetic fields - test level: 10 V/m (80...1000 MHz) conforming to IEC 61000-4-3, Susceptibility to electromagnetic fields - test level: 30 V/m (1.4 GHz...2 GHz) conforming to IEC 61000-4-3 |
| Vibration resistance | +/-0.35 mm (f= 10…55 Hz) conforming to IEC 61496-1 |
| Shock resistance | 10 gn (duration = 16 ms) for 1000 shocks on each axis conforming to IEC 61496-1 |
| Operating altitude | 2000 m |
| service life | 20 year(s) |
| Part number | XPSMCMCO0000S1 |
|---|---|
| Type designation | XPSMCM |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 4.200 cm |
| Package 1 Width | 12.200 cm |
| Package 1 Length | 15.800 cm |
| Package 1 Weight | 201.000 g |
| Unit Type of Package 2 | S01 |
| Number of Units in Package 2 | 6 |
| Package 2 Height | 15.000 cm |
| Package 2 Width | 15.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 1.451 kg |
| Shipping weight | 0.3 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated operational voltage of XPSMCM is 24 V DC.
The tariff (HS) code on file for XPSMCM is 853710.
XPSMCM ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
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