Product Description
Model: 6ES7214-1BG40-0XB0 Brand: Siemens Product Name: CM 1243‑5 PROFIBUS‑DP Master Communication Module
6ES7214-1BG40-0XB0 is PROFIBUS‑DP master communication module dedicated for SIMATIC S7‑1200 PLC. It is expanded via backplane bus, enabling S7‑1200 to act as DP master for PROFIBUS fieldbus network, supporting DP‑V0 / DP‑V1 protocol. It connects ET200 distributed I/O, DP inverters, DP instruments and other DP‑slave devices. Supports S7 communication and PG/OP online debugging, configured directly within TIA Portal without extra programming. Maximum 3 modules can be used per S7‑1200 CPU. Compact DIN‑rail mounting, widely used as spare part for industrial automation projects.
Technical Specifications
| Item | Specifications |
|---|---|
| Order No. | 6ES7214-1BG40-0XB0 |
| Designation | CM 1243‑5 |
| Compatible CPU | Full range SIMATIC S7‑1200 CPU |
| Protocol | PROFIBUS‑DP‑V0 / DP‑V1 (DP Master) |
| Interface | 1 × RS485, 9‑pin Sub‑D female connector |
| Baud Rate | 9.6 kbit/s ~ 12 Mbit/s |
| Max. DP Slaves per module | 16 |
| I/O Data per slave | Max.244 bytes input / 244 bytes output |
| Total module I/O address area | 512 bytes input, 512 bytes output |
| Max.modules per CPU | 3 units |
| Power Supply | DC24V (19.2‑28.8V), power loss 2.4W, typical 0.1A |
| Mounting | 35 mm DIN‑rail, wall‑mount option |
| Dimensions | W30 mm × H100 mm × D75 mm |
| Weight | 0.134 kg |
| Ingress Protection | IP20 |
| Operating Temperature | 0‑55℃(horizontal mounting); 0‑45℃(vertical mounting) |
| Storage / Transport Temperature | -40℃ ~ +70℃ |
| Relative Humidity | Max.95 %, non‑condensing |
| Configuration Tool | TIA Portal (STEP 7) |
Product Application
- Expand PROFIBUS‑DP master interface for S7‑1200 systems, connect ET200M, ET200SP distributed I/O stations.
- Communicate with PROFIBUS‑DP inverters, drives, encoders and field instruments for drive‑system and field‑device integration.
- Legacy‑machine retrofitting, interconnection with existing PROFIBUS fieldbus infrastructure.
- Communication expansion & spare‑part replacement for manufacturing lines, water treatment, metallurgy and logistics automation projects.
Main Series Part Numbers
- 6GK7242‑5DX30‑0XE0 CM1242‑5 PROFIBUS‑DP Slave Module
- 6GK7243‑5DX30‑0XE0 CM1243‑5 DP Master Module (this item)
- 6ES7241‑1AH32‑0XB0 CM1241 RS232 Serial Module
- 6ES7241‑1CH32‑0XB0 CM1241 RS485 Serial Module
- 6GK7542‑5DX00‑0XE0 CM1542‑5 S7‑1500 DP Slave Module
- 6GK7543‑5DX00‑0XE0 CM1543‑5 S7‑1500 DP Master Module
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