| General information |
| Product type designation |
CM PtP RS 422 / 485 HF |
| Product function |
| ● I&M data |
Yes; I&M 0 |
| ● Fast startup |
Yes |
| Engineering with |
| ● STEP 7 TIA Portal configurable/integrated from version |
V12 / V12 |
| ● STEP 7 configurable/integrated from version |
V5.5 SP2 with GSD file |
| ● PROFIBUS from GSD version/GSD revision |
- / - |
| ● PROFINET from GSD version/GSD revision |
V2.3 / - |
| Installation type/mounting |
| Rail mounting |
Yes; S7-1500 mounting rail |
| Supply voltage |
| Design of the power supply |
system power supply |
| Input current |
| Current consumption (rated value) |
43 mA; From the backplane bus |
| Power |
| Power consumption from the backplane bus |
0.65 W |
| Power loss |
| Power loss, typ. |
0.6 W |
| Address area |
| Address space per module |
| ● Inputs |
8 byte |
| Interface types |
| RS 485 |
| ● Transmission rate, max. |
115.2 kbit/s |
| ● Cable length, max. |
1 200 m |
| RS 422 |
| ● Transmission rate, max. |
115.2 kbit/s |
| ● Cable length, max. |
1 200 m |
| ● 4-wire full duplex connection |
Yes |
| ● 4-wire multipoint connection |
No |
| Protocols |
| Integrated protocols |
| Freeport |
| — Telegram length, max. |
4 kbyte |
| — Bits per character |
7 or 8 |
| — Number of stop bits |
1 or 2 bit |
| — Parity |
None, even, odd, always 1, always 0, any |
| 3964 (R) |
| — Telegram length, max. |
4 kbyte |
| — Bits per character |
7 or 8 |
| — Number of stop bits |
1 or 2 bit |
| — Parity |
None, even, odd, always 1, always 0, any |
| Modbus RTU master |
| — Address area |
1 to 247, extended 1 to 65535 |
| — max. number of devices |
32 |
| protocols / Modbus RTU device / header |
| — Address area |
1 to 247, extended 1 to 65535 |
| Telegram buffer |
| ● Buffer memory for telegrams |
8 kbyte |
| ● Number of telegrams which can be buffered |
255 |
| Interrupts/diagnostics/status information |
| Diagnostics function |
Yes |
| Alarms |
| ● Diagnostic alarm |
Yes |
| ● Hardware interrupt |
No |
| Diagnoses |
| ● Wire-break |
Yes |
| Diagnostics indication LED |
| ● RUN LED |
Yes; green LED |
| ● ERROR LED |
Yes; red LED |
| ● Receive RxD |
Yes; Yellow LED |
| ● Transmit TxD |
Yes; Yellow LED |
| Potential separation |
| between backplane bus and interface |
Yes |
| Isolation |
| Isolation tested with |
707 V DC (type test) |
| Ambient conditions |
| Ambient temperature during operation |
| ● horizontal installation, min. |
0 °C |
| ● horizontal installation, max. |
60 °C |
| ● vertical installation, min. |
0 °C |
| ● vertical installation, max. |
40 °C |
| Altitude during operation relating to sea level |
| ● Installation altitude above sea level, max. |
5 000 m; restrictions for installation altitudes > 2 000 m, see ET 200MP system manual |
| Decentralized operation |
| to SIMATIC S7-300 |
Yes |
| to SIMATIC S7-400 |
Yes |
| to SIMATIC S7-1500 |
Yes |
| to standard PROFINET controller |
Yes |
| Dimensions |
| Width |
35 mm |
| Height |
147 mm |
| Depth |
127 mm |
| Weights |
| Weight, approx. |
0.22 kg |
| Approvals / Certificates |