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Parameterization software | Loadable drivers for CP 441-2 and CP 341 | Type of license | Simple license, copy license | Target system | SIMATIC CP 341, SIMATIC CP 441-2 |
Technical specifications | Modbus Master | | | - Modbus protocol with RTU format
| | | - Master/slave coupling: SIMATIC S7 is master
| | | - Function codes implemented: 01, 02, 03, 04, 05, 06, 07, 08, 11,12,15,16
| | | - No V.24 control and signal lines
| | | - CRC polynomial: x16 + x15 + x2 +1
| | | - Interfaces: TTY (20 mA); V.24 (RS 232 C); X.27 (RS 422/485) 2-wire or 4-wire
| | | - Receive mailbox specified on BRCV
| | | - Character delay time 3.5 characters or multiple thereof
| | | - Broadcast message possible
| Adjustable parameters | - Transmission rate 300 bit/s up to 76800 bit/s (TTY up to 19200 bit/s)
| | | | | | - With/without RS 485 operation for 2-wire connections
| | | - With/without modem operation (ignore smudge characters)
| | | - Response monitoring time 100 ms to 25.5 s in steps of 100 ms
| | | - Factor for the character delay time 1-10
| | | - Default setting of receive line when using the X.27 interface module
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| | Modbus slave | | | - Modbus protocol with RTU format
| | | - Master/slave coupling: SIMATIC S7 is slave
| | | - Function codes implemented: 01, 02, 03, 04, 05, 06, 08, 15, 16
| | | - No V.24 control and signal line
| | | - CRC polynomial: x16 + x15 + x2 +1
| | | - Interfaces: TTY (20 mA), V.24 (RS 232C), X.27 (RS 422/485) 2-wire or 4-wire
| | | - Communications FB 180, instance DB 180 (use of a multi-instance)
| | | - Conversion of the Modbus data address to S7 data areas. Data areas which can be processed: DB, bit memories, outputs, inputs, timers, counters
| | | - Character delay time 3.5 characters or multiple thereof
| Adjustable parameters | - Transmission rate 300 bit/s up to 76800 bit/s (TTY up to 19200 bit/s)
| | | | | | - Slave address of CP (1 to 255)
| | | - With/without RS 485 operation for 2-wire connection
| | | - With/without modem operation (ignore smudge characters)
| | | - Factor for the character delay time 1-10
| | | - Number of work DB (for FB processing)
| | | - Enabling of memory areas for writing by the master
| | | - Default setting of receive line when using the X.27 interface module
| | | - Conversion of Modbus addresses to S7 data areas
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