Loadable drivers for CP 441-2 and CP 341

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0,638338693

Обзор

  • Drivers for Modbus protocol with RTU message format, communication as master or slave
  • Downloadable onto CP 341 and CP 441-2 (6ES7 441-2AA05-0AE0)

Область применения

Drivers are available for downloading for the CP 341 and CP 441-2:

  • Modbus:
    For communication according to the Modbus protocol with RTU format.
    Communication as master or slave

The two serial interfaces of the CP 441-2 can be operated independently with different standard protocols or downloadable drivers together with the V.24/TTY/X.27 interface modules.

Функции

Modbus

  • Modbus master:
    Master/slave coupling with SIMATIC S7 as master.
  • Modbus slave:
    Master/slave coupling with SIMATIC S7 as slave, message frame traffic from slave to slave not possible.
Configuration

The configuration package for CP 441-2 and CP 341 (V4.0 and higher) and STEP 7 V4.0 are required for downloading and configuration of the drivers. The drivers are copy protected by a dongle.

Технические данные

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)
  • Character frame
  • 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




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)
  • Character frame
  • 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