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S7-400 CPU 41x -- Configuring and programming communication -- Using communication blocks
How do you enable the ad-hoc mode when you call the TRCV instruction?
How do you use the blocks for MODBUS/TCP communication over the integrated PROFINET interface of the S7-300 and S7-400 CPUs and IM151-8 PN/DP CPU in STEP 7 Professional (TIA Portal)?
How do you establish a redundant MODBUS/TCP communication over the integrated PROFINET interface of a CPU 41x-H in STEP 7 V5.5?
What is the difference between the initialization and runtime parameters on the blocks for Modbus TCP?
Why is the status value A090 (hex) output for Modbus TCP although you have entered the correct license?
What are the differences between the licensed version and the downloadable demo version of the blocks for Modbus TCP?
Why is the value A083 (hex) output permanently at the STATUS output parameter of the block for Modbus TCP when the ENQ_ENR=true input parameter has been set?
Which blocks for Modbus TCP can you rename or re-wire when the block numbers of the Modbus blocks are already being used in the user program?
How can you read out diagnostics data from a SIRIUS 3RK3 modular safety system using a S7-300/400 CPU?
Which communication options are there in SIMATIC S7?
How does data communication work between S7-300/S7- 400 and S7-200 via MPI using S7 basic communication?
Consistent data in S7-400, summary of mechanisms
Which ports are released for Modbus/TCP communication and how many Modbus clients can communicate with a SIMATIC S7 CPU as Modbus server?
How do you implement chronological messaging with S7-400 CPUs and WinCC?
How do you configure a specified and an unspecified S7 connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
How can you establish OPEN MODBUS / TCP communication from a SIMATIC S7 and where can you find further information?
How do you use WinCC flexible to transfer a project to an operator panel via S7 routing?
What restrictions are there for active jobs when communicating with SFC 58 / SFC 59 and SFB 52 / SFB 53 via PROFIBUS DP and PROFINET IO?
How do you program the communication blocks FB63 "TSEND", FB64 "TRECV", FB65 "TCON" and FB66 "TDISCON" in order to use the ISO-on-TCP protocol for data exchange by way of the integrated PROFINET interface of a CPU or by way of the CP443-1 Advanced?
How do you program the communication blocks FB63 "TSEND", FB64 "TRCV", FB65 "TCON" and FB66 "TDISCON" in order to use the TCP protocol for data exchange by means of the integrated PROFINET interface of an S7-300 or S7-400 CPU?
How do you program the communication blocks FB67 "TUSEND", FB68 "TURCV", FB65 "TCON" and FB66 "TDISCON" in order to use the UDP protocol for data exchange by means of the integrated PROFINET interface of a CPU?
How can you access consistent data without SFC14/15 as part of the process image?
How great is data consistency in the PUT and GET S7 communication functions for the individual S7-400 CPUs?
Industrial Ethernet S7-300/400 CPs -- Configuring and programming communication -- Configuring connections
How do you check a TCP or UDP connection if there is no communication partner?
How do you configure a connection with the multiple port 502 for the Modbus/TCP function block MB_REDSV?
What should you watch out for when configuring fault-tolerant S7 connections over ISO-on-TCP?
How do you configure an ISO transport connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
How do you configure a UDP connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
How do you configure an ISO-on-TCP connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
Where can you find sample S7 programs and documentation for communication via PROFINET on the SIMATIC NET Quick Start Collection?
How do you send/receive data to/from multiple communication partners via the IE CP of an S7-300 or S7-400 station using the UDP protocol?
How do you configure a PC station as PROFINET IO controller for connecting to a S7 station (as PROFINET IO device) for the SIMATIC NET OPC server with the SIMATIC NET PC software?
How do you configure S5-compatible communication to the SIMATIC S7 via Industrial Ethernet for the SIMATIC NET OPC server with the SIMATIC NET PC software?
How do you configure an S7 connection for data communication between an S7-200 and an S7-300 or S7-400 on the Industrial Ethernet?
Establishing a connection from a PC to the S7-400 
What differences are there when configuring S7 connections?
What restrictions are there with Industrial Ethernet CPs when the communications service ISO-on-TCP is being used in parallel via the open TCP/IP communication and the SEND/RECEIVE interface?
What do you have to watch out for, in particular, in the assigning of TSAPs in ISO transport connections and ISO-on-TCP connections?
Procedure and meaning of multicast connections with Industrial Ethernet CPs
How do I set up an ISO connection between a SIMATIC S7 (CP343-1) and a SIMATIC 505 (CP1434) via INDUSTRIAL ETHERNET?
How do you configure the WRITE and FETCH services via Industrial Ethernet (ISO transport connection, ISO-on-TCP connection) for the S7-300/400 with Industrial Ethernet CP343-1 or CP443-1?
Commissioning and Configuring an ISO Transport Connection between the SIMATIC S5 and SIMATIC S7 via Industrial Ethernet
How do you configure a specified and an unspecified S7 connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
Configuring a TCP connection via Ethernet (TCP native) between a SIMATIC S7 and a PC with Socket Interface
How do you configure a TCP connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
S7-300 CPU 31x -- Configuring and programming communication -- Using communication blocks
How do you cyclically read out the 8 channels of the FM 350-2 counter module as quickly as possible?
How do you read out the IP address of the S7-300 CPU in the user program at runtime?
How do you enable the ad-hoc mode when you call the TRCV instruction?
How do you use the blocks for MODBUS/TCP communication over the integrated PROFINET interface of the S7-300 and S7-400 CPUs and IM151-8 PN/DP CPU in STEP 7 Professional (TIA Portal)?
Which security modules can be reached with SOFTNET Security Client V4 over a secure IPsec tunnel connection?
What is the difference between the initialization and runtime parameters on the blocks for Modbus TCP?
Why is the status value A090 (hex) output for Modbus TCP although you have entered the correct license?
What are the differences between the licensed version and the downloadable demo version of the blocks for Modbus TCP?
Why is the value A083 (hex) output permanently at the STATUS output parameter of the block for Modbus TCP when the ENQ_ENR=true input parameter has been set?
Which blocks for Modbus TCP can you rename or re-wire when the block numbers of the Modbus blocks are already being used in the user program?
How do you implement chronological messaging with S7-300 CPUs and WinCC?
How do you program communication blocks FB14 "GET" and FB15 "PUT" for data exchange in the S7 program of an S7-300 CPU?
How can you read out diagnostics data from a SIRIUS 3RK3 modular safety system using a S7-300/400 CPU?
Which ports are released for Modbus/TCP communication and how many Modbus clients can communicate with a SIMATIC S7 CPU as Modbus server?
How do you configure a specified and an unspecified S7 connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
What restrictions are there for active jobs when communicating with SFC 58 / SFC 59 and SFB 52 / SFB 53 via PROFIBUS DP and PROFINET IO?
How do you program communication blocks FB12 "BSEND" and FB13 "BRCV" for data exchange in the S7 program of an S7-300 CPU?
How do you program the communication blocks FB63 "TSEND", FB64 "TRECV", FB65 "TCON" and FB66 "TDISCON" in order to use the ISO-on-TCP protocol for data exchange by way of the integrated PROFINET interface of a CPU or by way of the CP443-1 Advanced?
How do you program the communication blocks FB63 "TSEND", FB64 "TRCV", FB65 "TCON" and FB66 "TDISCON" in order to use the TCP protocol for data exchange by means of the integrated PROFINET interface of an S7-300 or S7-400 CPU?
How can you establish OPEN MODBUS / TCP communication from a SIMATIC S7 and where can you find further information?
How do you program the communication blocks FB67 "TUSEND", FB68 "TURCV", FB65 "TCON" and FB66 "TDISCON" in order to use the UDP protocol for data exchange by means of the integrated PROFINET interface of a CPU?
How does data communication work between S7-300/S7- 400 and S7-200 via MPI using S7 basic communication?
How great is data consistency in the PUT and GET S7 communication functions for the individual S7-300 CPUs and C7 complete devices?
How can you access via PROFIBUS DP another CPU, which is connected to the PROFIBUS DP as a slave, from a DP master using basic communication with SFC72 "I_GET" and SFC73 "I_PUT"?
How can you access consistent data without SFC14/15 as part of the process image?
How do you configure a specified and an unspecified S7 connection for data exchange between S7-300 and/or S7-400 by way of Industrial Ethernet CPs?
Part number:

Instructions
You can use the S7 communication through S7 connections, among others, for data exchange by way of the Industrial Ethernet CPs of S7-300 and S7-400.

Below we describe how to configure a specified and an unspecified S7 connection for sending and receiving data by way of an Industrial Ethernet CP of S7-300 and S7-400.

 S7_Connection_en.pdf ( 2722 KB )

The function blocks and system functions below are called in the user program of the CPU for sending and receiving data by way of the configured S7 connection.

The Entry IDs below contain sample programs for programming the function blocks and system functions in the user program of S7-300 and S7-400 for sending and receiving data by way of a configured S7 connection.

Note
More information about communication over the Industrial Ethernet with S7-300 and S7-400 is available in the entries below.
 
Entry ID Description
26483647 What properties, advantages and special features does the S7 protocol offer?
30564821 Functions (FC) and Function Blocks (FB) for SIMATIC NET S7 CPs Programming Manual
44240604 System and Standard Functions for S7-300/400 Volume 1 and Volume 2
24352751 Which types of connection/protocols do the S7-300/400 CPUs and the CPs support by default?

 

 Entry ID:17628518   Date:2011-02-07 
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