SIMATIC control systems FM 458-1 DP basic module

Overview

  • Basic module for computing, closed-loop control and open-loop control tasks
  • PROFIBUS DP interface for connection of distributed I/O and drives
  • Modular design with expansion modules for I/O and communication
Product No. / Product Description Listprice / Your price
6DD1607-0AA2
SIMATIC S7-400, FM458-1 DP application group for SIMATIC S7-400

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Application

The FM 458-1 DP basic module handles complete closed-loop control and computing tasks. Very short sampling times down to 100 µs even enable the handling of dynamic control tasks.

Design

  • 64-bit RISC processor for maximum computing performance
  • 8 fast digital inputs for level-controlled or edge-controlled calling of up to 8 alarm tasks (interrupts)
  • PROFIBUS DP interface for linking of distributed I/O and drive engineering
  • 256 KB SRAM with battery backup for fail-safe saving of up to 1000 process variables or recorded traces
EXM 438-1, EXM 448 and EXM 448-2 expansion modules

Expansion modules are available for the FM 458-1 DP basic module for fast signal transmission.

EXM 438-1: I/O expansion

  • Analog and digital inputs/outputs
  • Incremental and absolute encoder connections

EXM 448: communications expansion

  • PROFIBUS DP (master or slave) 1)
  • One slot for MASTERDRIVES option modules, e.g. for the SIMOLINK module SLB

EXM 448-2: communications expansion

  • 2 integral SIMOLINK connections

The expansion modules can only be used with the FM 458-1 DP, where max. two of these expansion modules can be freely combined.

Any number of these “FM 458-1 DP combinations” can be used in a SIMATIC S7-400 station taking into consideration the power consumptions.

Function

The configuration process is greatly simplified when floating-point arithmetic is used to solve control and computing tasks:

  • Normalization is not required.
  • Virtually unlimited range of values.
  • Very high resolution.
Configuration

Configuration instead of programming with CFC

The FM 458-1 DP is configured using the well-known software tools STEP 7 and CFC (Continuous Function Chart) which are also used to program the SIMATIC S7-400.

CFC is an intuitive Windows-based program that is easy to learn. The CFC has been expanded to include the function blocks and the optimized operating system using the D7-SYS add-on software package.

CFC noticeably reduces configuration time when used to create automation programs:

  • You can drag & drop function blocks from the block catalog; their inputs and outputs are then automatically connected. Subsequently, you only need to set the application-specific parameters to complete the configuration.
  • Detailed documentation automatically created
  • The interconnection of standard blocks is faster and less error-prone than programming
  • Frequently used program components (plans) can be transferred to a block that is reusable and can be centrally modified.
  • Hierarchical CFC plans increase transparency and improve the clarity of the program structure (plan-in-plan method or “top-down”).
  • “CFC test mode” allows you to quickly execute a graphics-supported startup and trace signals on the screen while the system is running:
    • Viewing and editing values.
    • Entering, editing and deleting connections between function blocks.
    • Inserting or deleting function blocks.
  • With the user block generator, you can create individual function blocks in “C” for individual applications and also integrate them into the CFC.

Technical specifications

Article number

6DD1607-0AA2

FM458-1 DP APPLICATION MODULE

Supply voltage

Rated value (DC)

  • ● 5 V DC

Yes

  • ● 24 V DC

Yes

permissible range (ripple included), lower limit (DC)

4.8 V

permissible range (ripple included), upper limit (DC)

5.25 V

Input current

Current consumption, typ.

1.5 A

Current consumption, max.

3 A

Memory

Backup

  • ● present

Yes; SRAM

Battery

Backup battery

  • ● Backup current, max.

15 µA

Hardware configuration

Slots

  • ● required slots

1

Time of day

Clock

  • ● Hardware clock (real-time)

Yes

  • ● Resolution

500 ms

Digital inputs

Number of digital inputs

8; Connector X2

Input voltage

  • ● Rated value (DC)

24 V

  • ● for signal “0”

-1 to +6V

  • ● for signal “1”

13.5 to 33V

Input current

  • ● for signal “0”, max. (permissible quiescent current)

0 mA

  • ● for signal “1”, typ.

3 mA; at 24 V

Input delay (for rated value of input voltage)

for standard inputs

  • — at “0” to “1”, max.

5 µs

Interfaces

PROFIBUS DP

  • ● Equidistance

Yes; With connection to interrupt tasks

  • ● Direct data exchange (slave-to-slave communication)

Yes

Interrupts/diagnostics/status information

Alarms

Yes

Potential separation

Potential separation digital inputs

  • ● Potential separation digital inputs

No; only via optional interface modules

Weights

Weight, approx.

1 000 g