1 year warranty
The Siemens CM 1243-5 is a communication module designed to connect the SIMATIC S7-1200 programmable logic controller to PROFIBUS networks as a DP master. It operates as a DPV1-compliant master module according to IEC 61158, handling data traffic autonomously to relieve the CPU of communication tasks. The module supports up to 16 PROFIBUS DP slaves and provides PG/OP communication and S7 communication services. It features a 9-pin D-sub RS-485 interface for PROFIBUS connectivity, with the option to connect to optical networks via OBT or OLM. The CM 1243-5 is mounted on a 35 mm DIN rail to the left of the CPU and requires external 24 V DC power supply via a 3-pin terminal. It is ideal for factory automation applications requiring cost-effective PROFIBUS-based solutions in production environments.
Item Details
- Brand Name: Siemens
- Manufacturer: Siemens AG
- Item Type Name: Communication Module
- Product Family / Series: SIMATIC NET S7-1200
- Model: CM 1243-5
Product Specifications
- protocol: PROFIBUS DP Master (DPV1)
- interface_type: RS-485, 9-pin D-sub female connector
- max_dp_slaves: 16
- input_data_area: 512 bytes
- output_data_area: 512 bytes
- total_dp_data_area: 1024 bytes
- power_supply: 24 V DC external
- ambient_temperature_vertical: 0 to 45 °C
- ambient_temperature_horizontal: 0 to 55 °C
- storage_temperature: -40 to +70 °C
- relative_humidity: 95% max at 25 °C without condensation
- protection_class: IP20
- mounting: 35 mm DIN rail
Additional Details
- Compatibility: SIMATIC S7-1200 controllers
- Configuration Software: STEP 7 V11.0 or higher
- Max Modules Per Station: 3 CMs/CPs (1 to 3 DP masters depending on CPU firmware)
- Communication Services: DP master, PG/OP communication, S7 communication
Measurements
- Weight: 0.134 kg
- Width: 30 mm
- Height: 100 mm
- Depth: 75 mm
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
In no event shall PLC Direct be liable for any damages except actual damages up to, but not exceeding, the amount paid to us for the product, including we shall not be liable for any consequential or indirect damages or lost profits whether or not advised of same.
PLC Direct offers free shipping worldwide. Product ship from a various warehouses worldwide based on the customer's and the product's location. The estimated delivery date on the product page is PLC Direct's best estimated assuming a US-based shipping destination.
Regardless of where the product is shipping from, PLC Direct covers all duties for US-based shipping destinations. For non-US-based shipping destinations, customers are responsible for duties as appropriate.
PLC Direct's focus is on balancing price with lead time. Some but not all products can be expedited. If you have questions about delivery ETAs, please contact our team.
Trusted By
Need More?
Contact Us
we're here to support your business.
"Fast service for obsolete parts"
Increasingly PLC/ HMI control platforms are becoming obsolete and parts are no longer supported, however PLC Direct had the HMI we needed and fast shipping for our system to get back online!
Buyer at GE Health
"Helping us move projects forward"
With supply chain issues increasingly affecting our business, PLC Direct has been there for us to supply the PLC products we need, when we need it. If they don't have it readily available, they find it and provide it quickly and reliably. This has helped us move forward with several projects that would have otherwise taken us many, many months to complete.
Buyer at E-Merge Systems – A Rockwell Integrator