| Product type designation | CP 343-5 |
| Communications processor CP 343-5 for connection of SIMATIC S7-300 to PROFIBUS, FMS, S5-compatible, PG/OP and S7 communication, 12 Mbit/s, Single-width |
| Transmission rate |
| Transfer rate | |
| at the 1st interface / acc. to PROFIBUS | 9.6 kbit/s ... 12 Mbit/s |
| Interfaces |
| Number of interfaces / acc. to Industrial Ethernet | 0 |
| Number of electrical connections | |
| at the 1st interface / acc. to PROFIBUS | 1 |
| for power supply | 1 |
| Type of electrical connection | |
| at the 1st interface / acc. to PROFIBUS | 9-pin Sub-D socket (RS485) |
| for power supply | 4-pole terminal block |
| Supply voltage, current consumption, power loss |
| Type of voltage / of the supply voltage | DC |
| Supply voltage / 1 / from backplane bus | 5 V |
| Supply voltage | 24 V |
| Supply voltage / external | 24 V |
| Supply voltage / external / at DC / Rated value | 24 V |
| Relative positive tolerance / at DC / at 24 V | 20 % |
| Relative negative tolerance / at DC / at 24 V | 15 % |
| Consumed current | |
| from backplane bus / at DC / at 5 V / typical | 0.15 A |
| from external supply voltage / at DC / at 24 V / typical | 0.25 A |
| Power loss [W] | 5 W |
| Permitted ambient conditions |
| Ambient temperature | |
| during operation | 0 ... 60 °C |
| during storage | -40 ... +70 °C |
| during transport | -40 ... +70 °C |
| Relative humidity / at 25 °C / without condensation / during operation / maximum | 95 % |
| Protection class IP | IP20 |
| Design, dimensions and weight |
| Module format | Compact module S7-300 single width |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Net weight | 0.3 kg |
| Mounting type | |
| S7-300 rail mounting | Yes |
| Product properties, functions, components / general |
| Number of units | |
| per CPU / maximum | 4 |
| Performance data / open communication |
| Number of possible connections / for open communication / by means of SEND/RECEIVE blocks / maximum | 16 |
| Amount of data | |
| as user data per connection / for open communication / by means of SEND/RECEIVE blocks / maximum | 240 byte |
| Performance data / FMS functions |
| Number of possible connections / for FMS connection / maximum | 16 |
| Amount of data / of the variables | |
| for READ job / maximum | 237 byte |
| for WRITE and REPORT job / maximum | 233 byte |
| Number of variables | |
| Configurable from server to FMS partner | 256 |
| Loadable from server to FMS partner | 256 |
| Performance data / S7 communication |
| Number of possible connections / for S7 communication | |
| maximum | 16 |
| Performance data / multi-protocol mode |
| Number of active connections / with multi-protocol mode | 48 |
| Performance data / telecontrol |
| Protocol / is supported | |
| TCP/IP | No |
| Product functions / management, configuration |
| Configuration software | |
| required | STEP 7 V5.1 SP3 or higher and NCM S7 for PROFIBUS |
