PMA KS 94 PROFIBUS-DP User Manual

DESCRIPTION
The PROFIBUS-DP option enables the
KS 94 to be connected to PROFIBUS-DP
networks. This allows de-centralized and
independent industrial and process con-
trollers to be integrated into PLC or PC
systems. The PLC/IPC transfers
set-points and control information to the
KS 94, and polls process values cycli-
cally.
All control functions and the associated
scaling and monitoring tasks are exe-
cuted independently. This ensures high
process safety together with short times
for engineering and commissioning.
DISPLAY AND OPERATION
Via its “day & night” display, the KS 94
shows all process data locally and easily
readable. If required, one line of the dis
-
play can be used to show a
freely-definable message.
Furthermore, the controller can be
switched to local operation, e.g. for com
-
missioning the control loop without any
previous programming of the PLC or the
supervisory system. In addition, the En
-
gineering Tool ET/KS 94 is available as a
useful device. It is connected via a
front-panel socket of the KS 94, and
serves for configuration, parameter set
-
ting, and operation of the controller.
The standard graphical trend display al
-
lows a qualitative evaluation of the
control results.
DE-CENTRALIZED I/O
Apart from the control function of the
KS 94, it is possible to access all inputs
and outputs directly. In this way, all the
controller’s I/O are also available to the
PLC/IPC.
The basic functions of the KS 94 / DP,
such as inputs/outputs, control
functions, etc. are described in the data
sheet (9498 737 28213) for the KS 94.
Technical data
According to EN 50170 Vol. 2
Reading and writing of all process data,
parameters and configuration data.
DATA FORMAT
Real values such as set-points and pro-
cess data are transmitted in the IEEE
format (REAL) or in the 16-bit fiexed
point format (FIX) with one digit behind
the decimal point (configurable).
PARAMETER CHANNEL
Process data and selected parameter
data are written and read cyclically. All
process-, parameter- and configuration
can be transmitted via parameter chan
-
nel. These data are transmitted over
several cycles on request.
756.0
756.0
y:óóóóó 55
qm/h
advanced line
KS 94 / DP
PROFIBUS-DP option for KS 94
PROFIBUS-DP Slave
Cyclic transmission of up to
16 input and 16 output values
Free definition of data content
Transmission of process and parameter data
Inputs and outputs as decentral IO

PMA KS 94 PROFIBUS-DP Specifications

General

Brand	PMA
Model	KS 94 PROFIBUS-DP
Category	Temperature Controller
Language	English

Summary

KS 94/DP PROFIBUS-DP Option

Description

The PROFIBUS-DP option enables the KS 94 to integrate into PLC/PC systems for de-centralized control.

Display and Operation

Features a day/night display for process data, local operation, and an engineering tool for configuration.

Technical Data and Communication

Covers data transmission standards, data formats, and parameter channel communication.

Configurable Process Data Modules

Process Data Modules Overview

Details various modules (a-g) for configuring I/O, parameter channels, and extended data transmission.

Data Contents and Functions

Explains data contents (Status/Control words, Inputs/Outputs) and controller functions like enabling outputs.

De-centralized I/O and Input Forcing

Describes direct access to I/O and overwriting physical inputs via PROFIBUS-DP for flexible control.

Back-up Controller Mode

Details the KS 94's automatic switch-over to local control if the master or bus communication fails.

Diagnosis and Connection

Diagnosis Behavior on Error

Explains controller behavior during master failure, bus interruption, or stop-mode, including alarm relays.

Transmission Speeds and Cable Lengths

Lists PROFIBUS-DP transmission speeds and their corresponding maximum cable lengths.

Engineering Set and Accessories

Outlines required accessories like the Engineering Set and function blocks for parameter channel use.

Ordering Information and Accessories

Ordering Information Codes

Provides codes for ordering different KS 94 configurations, interfaces, and controller types.

Accessory Equipment Order Numbers

Lists order numbers for essential accessories like Engineering Sets and connection adapters.