show the entry list
Serial CPs -- Product information -- System description (protocols)
Which hardware and software components do you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol?
Which types of connection/protocols do the S7-300/400 CPUs and the CPs support by default?
What are the differences between CP441-1 and CP441-2?
Which Details does Technical Support need regarding Inquiries on SIMATIC for S5 / S7 Point to Point communication
What properties, advantages and special features does the RK512 protocol offer?
What properties, advantages and special features does the Data Highway protocol offer?
What properties, advantages and special features does the ASCII protocol offer?
What properties, advantages and special features does the procedure 3964 (R) offer?
What properties, advantages and special features does the Modbus protocol offer?
ET 200S (standard modules) -- Product information -- System description
Which SIMATIC S7-300/S7-400 modules support the NTP time-of-day message and how do you activate this kind of time synchronization?
Which hardware and software components do you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol?
Which memory cards are used in the interface modules in the ET 200 with CPU functionality?
Which manufacturer ID, in other words OUI (Organizationally Unique Identifier), does SIEMENS AG use for the MAC addresses of network-compatible devices?
What is the connection between subnet masks and IP addresses with regard to subnetting and supernetting (Classless Inter Domain Routing CIDR)?
Which IO controllers and IO devices support the following functions: IRT, prioritized startup, MRP, PROFIenergy, Shared device, I device and clock-synchronized mode?
Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) in the case of topological configuration and device replacement without topological configuration?
Which PROFINET nodes support the extended PN diagnostics and what do you have to configure?
Backing up the IM 151/CPU data on Micro Memory Card
What is the meaning of the terms "sinking" (German: "P-schaltend") and "sourcing" (German: "M-schaltend") in digital modules of SIMATIC?
ET 200M (standard modules) -- Product information -- System description
Which hardware and software components do you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol?
How do you replace an IM153-2 FO?
Which manufacturer ID, in other words OUI (Organizationally Unique Identifier), does SIEMENS AG use for the MAC addresses of network-compatible devices?
Which IO controllers and IO devices support the following functions: IRT, prioritized startup, MRP, PROFIenergy, Shared device, I device and clock-synchronized mode?
Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) in the case of topological configuration and device replacement without topological configuration?
Which PROFINET nodes support the extended PN diagnostics and what do you have to configure?
What degree of accuracy can you obtain for plant-wide and segment-wide time stamping?
NAMUR sensors on ET200 slaves
Starting up ET200-M with analog modules
Module failure with ET200-M
What do you need the Micro Memory Card (MMC) for in the ET 200M?
Time stamping of process signal changes with IM153-2BA00
Which manuals for ET 200M are available for downloading in A&D Product Support?
ET 200SP -- Product information -- System description
How do you load the 3D, CAx and ePLAN data for the SIMATIC products?
What is the meaning of the terms "sinking" (German: "P-schaltend") and "sourcing" (German: "M-schaltend") in digital modules of SIMATIC?
Which hardware and software components do you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol?
Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) in the case of topological configuration and device replacement without topological configuration?
Which PROFINET nodes support the extended PN diagnostics and what do you have to configure?
ET 200MP -- Product information -- System description
How do you load the 3D, CAx and ePLAN data for the SIMATIC products?
Which hardware and software components do you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol?
Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) in the case of topological configuration and device replacement without topological configuration?
Which PROFINET nodes support the extended PN diagnostics and what do you have to configure?
Which hardware and software components do you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol?
Part number:

Description
This entry shows you which hardware and software components you need to establish communication between SIMATIC S7 stations and third-party devices using the MODBUS RTU protocol. The SIMATIC S7 stations below can be used as Modbus Master (RTU) and Modbus Slave (RTU):

SIMATIC S7-300, ET 200M or S7-400
SIMATIC S7-300, ET 200M and S7-400 can be used as Modbus Master (RTU) or as Modbus Slave (RTU).

S7-300, ET 200M and S7-400 you need the hardware and software components below to connect a third-party device and establish communication with the MODBUS RTU protocol:

  •  A serial CP
    • CP341 for S7-300 and ET 200M
    • CP441-2 for S7-400
  •  The relevant loadable driver

The table below gives an overview of the hardware and software components.
 
Hardware and software components Note
CP341 The loadable drivers Modbus Master (RTU) and Modbus Slave (RTU) can be installed on the serial CP341 with the article numbers below:
  • 6ES7341-1AH00-0AE0
  • 6ES7341-1AH01-0AE0
  • 6ES7341-1AH02-0AE0
  • 6ES7341-1BH00-0AE0
  • 6ES7341-1BH01-0AE0
  • 6ES7341-1BH02-0AE0
  • 6ES7341-1CH00-0AE0
  • 6ES7341-1CH01-0AE0
  • 6ES7341-1CH02-0AE0
CP441-2 The loadable drivers Modbus Master (RTU) and Modbus Slave (RTU) can be installed on the serial CP441-2 with the article numbers below:
  • 6ES7441-2AA03-0AE0
  • 6ES7441-2AA04-0AE0
  • 6ES7441-2AA05-0AE0

Note
For the CP441-2 you also need the corresponding interface module:

  • 6ES7963-1AA00-0AA0 with RS232 interface
  • 6ES7963-2AA00-0AA0 with TTY interface
  • 6ES7963-3AA00-0AA0 with RS422/RS485 interface
Loadable driver Modbus Master (RTU) The loadable driver Modbus Master (RTU) for CP341 and CP441-2 is available for downloading in Entry ID: 27774018.
The license for the loadable driver Modbus Master (RTU) is available under the article numbers below:
  • 6ES7870-1AA01-0YA0: the license delivery package includes the software, documentation and hardware dongle
  • 6ES7870-1AA01-0YA1: the license delivery package includes only the hardware dongle
Loadable driver Modbus Slave (RTU) The loadable driver Modbus Slave (RTU) for CP341 and CP441-2 is available for downloading in Entry ID: 27774276.
The license for the loadable driver Modbus Slave (RTU) is available under the article numbers below:
  • 6ES7870-1AB01-0YA0: the license delivery package includes the software, documentation and hardware dongle
  • 6ES7870-1AB01-0YA1: the license delivery package includes only the hardware dongle
Table 01

Further Information

  • More information about commissioning the loadable drivers Modbus Master (RTU) and Modbus Slave (RTU) is available in the manuals below.
Manual Entry ID
SIMATIC S7-300/S7-400 Loadable Drivers for PtP CPs: MODBUS Protocol RTU Format, S7 is Master 1220184
SIMATIC S7-300/S7-400 Loadable Drivers for PtP CPs: MODBUS Protocol RTU Format, S7 is Slave 1218007
Table 02
  • How to download a loadable driver such as Modbus Master (RTU) into a CP341 that is connected to an S7-400 H system by means of an ET 200M is described in Entry ID: 17854293.

SIMATIC S7-1200
The SIMATIC S7-1200 station can be used as Modbus Master (RTU) or Modbus Slave (RTU).

In the S7-1200 you need one of the following communication modules to connect a third-party device and establish communication with the MODBUS RTU protocol.
 
Communications module Article number
CM 1241 RS422/485 6ES7241-1CH31-0XB0
CM 1241 RS485 6ES7241-1CH30-0XB0
CB 1241 RS485 6ES7241-1CH30-1XB0
CM 1241 RS232 6ES7241-1AH30-0XB0
Table 03

Further Information

  • More information about communication using the MODBUS RTU protocol is available in the manual in Entry ID: 36932465.
  • A sample program for establishing MODBUS-RTU communication for SIMATIC S7-1200 is available in Entry ID: 47756141.

SIMATIC S7-1500, SIMATIC ET 200MP, SIMATIC ET 200SP
The SIMATIC S7-1500 station can be used as Modbus Master (RTU) or Modbus Slave (RTU).

In the S7-1500 you need one of the following communication modules to connect a third-party device and establish communication with the MODBUS RTU protocol.
 
Communications module Article number
CM PtP RS232 HF (for S7-1500 and ET 200MP) 6ES7541-1AD00-0AB0
CM PtP RS422/485 HF (for S7-1500 and ET 200MP) 6ES7541-1AB00-0AB0
CM PtP (for ET 200SP) 6ES7137-6AA00-0BA0
Table 04  

Additional Information

  • More information about communication using the MODBUS RTU protocol with the S7-1500, the ET 200MP and the ET 200SP is available in the manual in Entry ID 59057093.
  • A sample program for establishing MODBUS-RTU communication for SIMATIC S7-1500 is available in Entry ID 68202723.

SIMATIC ET 200S
The SIMATIC ET 200S can be used as Modbus Master (RTU) or as Modbus Slave (RTU).

In the ET 200S you need a serial interface module ET 200S Modbus/USS to connect a third-party device and establish communication with the MODBUS RTU protocol.
 
Serial interface module Article number
ET 200S 1SI 6ES7138-4DF10-0AB0
6ES7138-4DF11-0AB0
Table 05

Further Information
More information about the serial interface module ET 200S Modbus/USS is available in the manual in Entry ID: 9260793.

 Entry ID:58386780   Date:2014-06-05 
I regard this article....as helpfulas not helpful                                 
mySupport
My Documentation Manager 
Newsletter 
CAx-Download-Manager 
Support Request
To this entry
Print
Create PDF 
Send to a friend
QuickLinks
Compatibility tool 
Topics
Help
Online Help
Guided Tour