| Performance features |
| Space reduction due to slim design |
| Reduced costs ensured by elimination of the bus terminal BT777 |
| Cost saving equipment due to operation without a fan (115U) |
| Easy handling and assembly due to modular connection techniques (BG41) |
| Maximum plant availability ensured by process-independent diagnosis |
| Extreme flexibility due to slot independence (no space for CP required!) |
| Increased plant power ensured by high baud rate (38.4K) |
| Shorter configuration time by using approved Function Blocks |
| Easy maintenance provided by status indication via LED |
| Fast plant modification employing INIT via initiation-Obs of the CPU (no EPROM required) |
| |
| Fields of application |
| The communication processor SSN is used for: |
| - Sinec® from Siemens L1 bus connection via RS485 within the Simatic® from Siemens S5 PLC types 115U, 135U and 155U on 48-pin, 3-row spring contact strips (grey connector DIN 41612, type F) |
| |
| Configuration |
| One module slot |
| One 25-pin subD connector |
| Functionality master slave without intercommunication |
| Transmission rate up to 38400 Baud in steps |
| Internal quartz clock (battery-buffered) |
| Microprocessor for protocol handling |
| Address adjustment via DIL-switch |
| Data exchange between CPU and module via approved Function Blocks |
| |
| Special Features |
| Higher data throughput up to 250 byte |
| The modules may also be inserted on the IM-slot of the 115 CPU |
