| | SIMATIC S7, Y-COUPLER FOR BUILDING UP A Y-LINK FOR REDUNDANT CONTROLLERS |
| |
| General information |
| Requirements for DP master system |
| Length of parameter assignment message | 244 byte |
| Supply voltage |
| Description | via bus module |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| Interfaces |
| PROFIBUS DP |
| Properties of the lower-level DP master systems |
| Transmission rate, max. | 12 Mbit/s; 45.45 kbit/s to 12 Mbit/s |
| Termination of lower-level DP master system | Active terminating resistor (Bus Terminator) |
| Use of OLM/OBT | Yes |
| Use of RS 485 repeaters, max. | 9 |
| Number of DP slaves, max. | 31; 64 when using RS 485 repeaters or OLM/OBT |
| Protocols |
| PROFIBUS DP protocol | Yes |
| Interrupts/diagnostics/status information |
| Status indicator | No |
| Alarms |
| Alarms | No |
| Diagnostic messages |
| Diagnostic functions | Yes |
| Galvanic isolation |
| to lower-level DP master system | Yes |
| Dimensions |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 130 mm |
| Weight |
| Weight, approx. | 200 g |
| Status | Apr 17, 2012 |
