Siemens manual DP extensions for AS 488/TM, Mode of operation, Driver blocks

This catalog is out of date, see note on page 3

Process I/Os

DP extensions for AS 488/TM

■Overview

Starting with the AS 488/TM system software M01.00, the ET 200M, ET 200U and ET 200B distributed I/O systems are explicitly released for the AS 488/TM as remote I/Os on the PROFIBUS-DP. Use of these systems on the AS 488/TM was supported by the DPAE/DPAA and DPBE/DPBE driver blocks right from the beginning. S5 and S7 formats could be used for the raw analog values.

Connection of other standard DP slaves from the product ranges of Siemens and other vendors was assured as far as communi- cation was concerned; however, support with respect to conver- sion of analog values and acquisition of diagnostics data could not be assured in all cases.

The DP extensions for AS 488/TM, which require the AS 488/TM system software M01.06 or M02.00, extend the AS x88/TM by the following functions:

•Support of further DP ranges and devices

-ET 200S, ET 200X

-Links with DP/AS-i conversion (link 20 and link 65) as well as CP 342-2 communications processor for ET 200M for linking of the AS-I fieldbus

-IM 153-2 and IM 153-2 FO

-SIMATIC S7 CPU 315-2 DP and SIMATIC S5-95U

•Additional DP4E/DP4A driver blocks with new types of format for analog values

-4-byte integers (long integers)

-S7/IEEE floating-point numbers

(only supported if at least the small PROFIBUS-PA license is present)

-S5 floating-point numbers

•HMI driver block with server functions for the TP170B, OP170B, MP270 and MP370 panels based on Microsoft Windows

•Increase in number of DP slaves per DP line to 122

•The user documentation includes information and examples on configuring and diagnostics.

■Mode of operation

Driver blocks

Driver	Description
name
DP4E	Input block for four input values as long integer, S7/IEEE
	and S5 floating-point numbers, and conversion into TM
	floating-point numbers
DP4A	Output block for four TM floating-point numbers following
	previous conversion into long integer, S7/IEEE and S5
	floating-point numbers
HMI	Downloadable block (version V3.0 onwards) with server
	functions for operation of Windows-based TP170B and
	OP170B panels and MP270 and MP370 multipanels

The DP4E/DP4A driver blocks support use of the COUNT mod- ule of ET 200S, amongst others.

The DP4E/DP4A driver blocks directly convert TM floating-point numbers and floating-point numbers in SIMATIC S5 format (KG format) so that S5 components or components from other vendors which support the KG format can be directly operated. If the AS 488/TM has a PROFIBUS-PA license, the direct ex- change of IEEE floating-point numbers is possible between AS 488/TM and the SIMATIC S7 station or the device from anoth- er vendor. Without a PROFIBUS-PA license for the AS 488/TM, the floating-point numbers must be converted on the S7 station or the device from another vendor into the KG format if they are to the transported via the DP nterface.

The maximum number of 122 DP slaves on a DP line can only be reached if each DP slave does not occupy more than 64 byte in- put data and 64 byte output data.

■Ordering Data

	Order No.
Program package "DP exten-	C79451-A3496-D900
sions for AS x88/TM"

comprising:

•3.5" program diskettes

-Driver blocks (partially inte- grated in system program, partially downloadable)

-Extension of PROFIBUS-DP communications interface

-User documentation in Ger- man and English

-Initialization software for oper- ation of the second DP line

•Product documentation in Ger- man and English

Note:

The system software M02.01 or M01.07 already supports the AS 488/TM as standard for the maximum number of 122 DP slaves per DP line as well as hot swapping of ET 200S and ET 200M with IM 153-2 or IM 153-2 FO.

The HMI driver block is not suitable for use of panels belonging to the older generation (e.g. OP37). These cannot be directly connected to the DP line of the AS 488/TM via their DP interface, but have to be linked, for example, via an intermediate S7-300 station with CPU 315-2DP. An example configuration is shown in the user documentation.

The program package "DP exten- sions for ASx88/TM" can be used for AS x88/TM from version M01.06 or M02.00 onwards

8/6 Siemens PLT 112 · 2002