Moeller EASY204-DP User manual

Operating Manual
EASY204-DP
PROFIBUS-DP Slave Interface
04/01 AWB-C2528-1401GB
1st published 2001, edition 04/01
© Moeller GmbH, Bonn
Author: Dieter Bauerfeind
Editor: Michael Kämper
Translator: Terence Osborn
All brand and product names are trademarks or
registered trademarks of the owner concerned.
All rights reserved, including those of the
translation.
No part of this manual may be reproduced in
any form (printed, photocopy, microfilm or any
otherprocess) or processed, duplicated or
distributed by means of electronic systems without
written permission of Moeller GmbH, Bonn.
Subject to alterations without notice.

I
Before commencing the installation
•Disconnect the power supply of the device.
•Ensure that devices cannot be accidentally
restarted.
•Verify isolation from the supply.
•Earth and short circuit.
•Cover or enclose neighbouring units that
are live.
•Follow the engineering instructions (AWA)
of the device concerned.
•Only suitably qualified personnel in
accordance with EN 50110-1/-2
(VDE 0105 Part 100) may work on this
device/system.
•Before installation and before touching
the device ensure that you are free of
electrostatic charge.
•The functional earth (FE) must be
connected to the protective earth (PE) or
to the potential equalisation. The system
installer is responsible for implementing
this connection.
•Connecting cables and signal lines should
be installed so that inductive or capacitive
interference do not impair the automation
functions.
•Install automation devices and related
operating elements in such a way that they
are well protected against unintentional
operation.
•Suitable safety hardware and software
measures should be implemented for the
I/O interface so that a line or wire breakage
on the signal side does not result in
undefined states in the automation
devices.
•Ensure a reliable electrical isolation of the
low voltage for the 24 volt supply. Only
use power supply units complying with
IEC 60364-4-41 (VDE 0100 Part 410) or
HD 384.4.41 S2.
•Deviations of the mains voltage from the
rated value must not exceed the tolerance
limits given in the specifications, otherwise
this may cause malfunction and dangerous
operation.
•Emergency stop devices complying with
IEC/EN 60204-1 must be effective in all
operating modes of the automation
devices. Unlatching the emergency-stop
devices must not cause restart.
•Devices that are designed for mounting in
housings or control cabinets must only be
operated and controlled after they have
been installed with the housing closed.
Desktop or portable units must only be
operated and controlled in enclosed
housings.
Moeller GmbH Safety instructions
Warning!
Dangerous electrical voltage!

II
•Measures should be taken to ensure the
proper restart of programs interrupted
after a voltage dip or failure. This should
not cause dangerous operating states even
for a short time. If necessary, emergency-
stop devices should be implemented.
•Wherever faults in the automation system
may cause damage to persons or property,
external measures must be implemented to
ensure a safe operating state in the event
of a fault or malfunction (for example, by
means of separate limit switches,
mechanical interlocks etc.).

04/01 AWB2528-1401GB
Contents
1
About This Manual 4
Target readership 4
Other manuals on the device 4
Abbreviations and symbols 4
Reading conventions 5
1 EASY204-DP 6
Device designation 6
System overview 7
Device setup 8
Description of device functions 9
Hardware and operating system requirements 9
Improper use 9
2 Installation 10
Connecting the power supply 10
Connecting PROFIBUS-DP 10
PROFIBUS-DP connection assignment 11
Bus terminating resistors 11
Potential isolation 12
Transfer rates 12
Maximum distances/Bus cable lengths 13
3 Device Operation 14
Initial power up 14
–PROFIBUS-DP setting the station address 14
–Setting the address on the basic unit with display 14
Status LEDs 16
–POW LED, Function 16
–BUS LED, Function 17
Cycle time of the EASY basic unit 17

Contents
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04/01 AWB2528-1401GB
4 PROFIBUS-DP Functions 18
Slave modules 18
Diagnostics data 18
GSD file 18
S40 application module 19
I/O data exchange, operating mode 19
–Data input module: EASY6..- “easy”
coils S1 to S8 20
–Data output module (operating mode, R1 to R8,
R9 to R16) 22
Control command data exchange 24
–Control command data exchange procedure 25
–Read time (weekday, hour, minute
winter/summer time) 27
–Write time (day, hour, minute,
winter/summer time) 31
–Timing relay read actual value (time base, actual
value, switch function) 35
–Write timing relay set time (time base, set time,
switch function) 39
–Read counter relay actual value 48
–Write counter relay setpoint 51
–Read time switches (channel, ON time, OFF time) 55
–Write time switch (channel, ON time, OFF time) 61
–Read analog and digital inputs (I7, I8, I1 to I16) 67
–Write analog value comparator (function,
comparison values) 71
–Read status of P buttons and operating buttons 75
–Read status of timing relay, time switches and
analog value comparator 77
–Read markers, digital outputs and text display 81

Contents
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04/01 AWB2528-1401GB
Appendix 85
What Happens If ...? 85
Overview of commands and content of bytes 85
–Data input module 85
–Data output module 86
–Control commands 86
Overview of commands in ascending order 92
Technical Data 95
–General 95
–Ambient temperatures 95
–Ambient mechanical conditions 96
–Electromagnetic compatibility (EMC) 96
–Dielectric strength 97
–Tools and cable cross-sections 97
–Power supply 97
–Status LEDs 97
–PROFIBUS-DP 98
Dimensions 99
GSD file 100
Glossary 103
Index 109

4
04/01 AWB2528-1401GB
About This Manual
Target readership This manual has been produced for automation technicians
and engineers. A sound knowledge of PROFIBUS-DP, the
programming of the PROFIBUS-DP master and the “easy”
control relay is assumed.
Other manuals on the
device
The EASY412, EASY600 User Guide (AWB2528-1304-...)
should always be used as an additional reference.
Abbreviations and
symbols
This manual uses abbreviations and symbols with the
following meaning:
hex: Hexadecimal (number system with the base 16)
dec : Decimal (number system with the base 10)
bcd: Binary coded decimal code
Xindicates instructions on what to do
h
hh
hdraws your attention to useful tips and additional
information
Attention!
indicates the possibility of minor material damage.
Caution!
indicates the possibility of major damage to property or
slight injury.
Warning!
indicates the possibility of major damage to property or
serious or fatal injury.

Reading conventions
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04/01 AWB2528-1401GB
Reading conventions Except for the first page of chapters and empty pages at the
end, the top left of the page shows the chapter title and the
top right of the page shows the current section for greater
clarity.

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04/01 AWB2528-1401GB
1EASY204-DP
EASY204-DP was developed for automation tasks using
PROFIBUS-DP as the communication bus. EASY204-DP can
only be operated in conjunction with expandable EASY6..
basic units. The unit is always a PROFIBUS-DP slave in the
network.
Device designation The PROFIBUS-DP slave interface for the “easy”control
relay has the type designation EASY204-DP.

System overview
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04/01 AWB2528-1401GB
System overview The EASY-PROFIBUS-DP slaves are integrated in a
PROFIBUS-DP system.
Figure 1: Integration of EASY204-DP in the DP network
aMaster area , PLC or PC
bSlave area, e.g. EASY control relay with DP interface
a
b

Device setup
8
04/01 AWB2528-1401GB
Device setup
Figure 2: View of the device
aPROFIBUS-DP connection, 9-pole SUB-D socket
b24 V DC supply voltage
cDevice designation plate
dBUS communication LED
ePOW operation LED
fEASY-LINK socket
POW
BUS
f
e
a
d
cb

Description of device functions
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04/01 AWB2528-1401GB
Description of device
functions
The EASY204-DP module links the PROFIBUS-DP master
with an expandable EASY6... control relay.
The following data can be transferred, depending on the
module selected in the PROFIBUS GSD file:
•S1 to S8; EASY6.. output range, Run/Stop (inputs of the DP
master)
•R1 to R16; EASY6.. input range, Run/Stop (outputs of the
DP master)
All function relay data (read data from the point of view of
the DP master)
•Timing relays
•Counter relays
•Time switches
•Analog comparators
•Weekday, time, summer/winter time (DST)
•The states of all EASY6.. relays and contacts
The setpoints of the function relays (write data from the
point of view of the DP master)
•Timing relays
•Counter relays
•Time switches
•Analog comparators
•Weekday, time, summer/winter time (DST)
Hardware and operating
system requirements
The EASY204-DP expansion unit runs with the operating
system version 2.4 and higher of the EASY619.. and
EASY621.. basic units.
Improper use “easy”should not be used as a substitute for safety-related
controls such as burner or crane controls, emergency-stop or
two-hand safety controls.

10
04/01 AWB2528-1401GB
2 Installation
The same principles apply to EASY6.. basic units with
expansion units.
Connecting the power
supply
The EASY204-DP unit is run on a 24 V DC power supply
(aSection “Technical Data”from Page 95).
Figure 3: Standard connection
Connecting PROFIBUS-DP Use a 9-pole SUB-D plug to connect the PROFIBUS-DP
interface to the PROFIBUS-DP bus.
For this use the special PROFIBUS-DP plug and the special
PROFIBUS-DP cable available from the Moeller range of
accessories.
Warning!
Ensure the safe electrical isolation of the 24 V low voltage
(SELV) power supply.
+24 V
> 1 A
0 V
+24 V 0 V

PROFIBUS-DP connection
assignment
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04/01 AWB2528-1401GB
PROFIBUS-DP connection
assignment
Figure 4: DP connection
3 RxD/TxD-P (B Line)
(4) Control-P (RTS), optional
(5) data ground, optional
(6) VP (plus voltage), optional
8 RxD/TxD-N (A Line)
Connections 3, 8 and the shield are sufficient for data
transfer.
Bus terminating resistors The first and last stations in a bus segment must be
connected to the bus with the bus terminating resistor
switched on.
Moeller's PROFIBUS-DP data plug enables both bus
terminating resistors to be switched on and off.
4
3
8
5
6
RTS
B-Line
A-Line
2 M
2 P5

Potential isolation
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04/01 AWB2528-1401GB
Potential isolation Observe the following potential isolation measures:
Figure 5: Potential isolation between the power supply and
outputs
aSafe isolation of EASY-LINK 240 V AC
bSimple isolation of PROFIBUS-DP
c24 V DC supply voltage
Transfer rates The EASY204-DP module detects the transfer rate
automatically. The following transfer rates are supported:
•9.6 Kbit/s to 12000 Kbit/s
a
c
b
+ –

Maximum distances/Bus cable
lengths
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04/01 AWB2528-1401GB
Maximum distances/Bus
cable lengths
Distance between two stations when using cable type “A”
to DIN 19245 Part 3.
Distance between two stations when using cable type “B”
to DIN 19245 Part 1.
Baud rate
[Kbit/s]
Maximum cable length
Type “A”
[m]
9.6 1200
19.2 1200
93.75 1200
187.5 1000
500 400
1500 200
3000 100
6000 100
12000 100
Baud rate
[Kbit/s]
Maximum cable length
Type “B”
[m]
9.6 1200
19.2 1200
93.75 1200
187.5 1000
500 400
1500 –

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04/01 AWB2528-1401GB
3 Device Operation
Initial power up XBefore switching on, check that you have connected the
power supply, the bus connection and the connection to
the basic unit correctly.
XSwitch on the power supply to the basic unit and the
PROFIBUS-DP expansion unit.
If the PROFIBUS-DP unit is factory set, the station address of
the PROFIBUS-DP station must be set.
PROFIBUS-DP setting the station address
Basic units with display and keypad
The PROFIBUS-DP address on these units can be set in two
ways.
•Using EASY-SOFT version 3.1 and higher
•Integrated display and keypad on the “easy”basic unit
Address range: 001 to 126
Setting the address on the basic unit with display
Requirements:
•Basic unit EASY6.., EASY204-DP are switched on
•The basic unit has been “unlocked”(no password
protection activated)
•The basic unit has an operating system version 2.4 and
higher
•There is no communication between EASY204-DP and the
PROFIBUS-DP master

Initial power up
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04/01 AWB2528-1401GB
XSwitch to the System menu.
XPress
XSelect “CONFIGURATOR”
XConfirm with “OK”
XSet address
+
PASSWORD...
SYSTEM
GB D F E I..
CONFIGURATOR
PASSWORD...
SYSTEM
GB D F E I..
CONFIGURATOR
DP-DEVICE
ADDRESS
INPUT: 000
o
O
0 0pP 0 0
. . 1 0 9 . . . 2 1 . .
. . 1 2 3 . . . 9 0 1 . . .

Status LEDs
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XTransfer address
XCancel address entry
Setting the address via EASY-SOFT:
•Using EASY-SOFT version 3.1 and higher
•<Menu rOnline rConfigure Expansion Units>
Status LEDs The EASY204-DP expansion unit has two LEDs.
They are only lit if there is a proper connection via EASY-LINK
from EASY204-DP to the basic unit.
POW LED, Function
Figure 6: Function of the POW LED
aLED continuously lit:
–Power supply present
–Communication with the basic unit aborted
bLED flashing:
–Power supply present
–Communication with the basic unit correct
cLED not lit:
–No power supply present
–Communication with the basic unit aborted
b
c
a

Cycle time of the EASY basic
unit
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04/01 AWB2528-1401GB
BUS LED, Function
Figure 7: Function of the BUS LED
aLED continuously lit:
–PROFIBUS-DP communication correct
bLED not lit:
–No PROFIBUS-DP communication present
Cycle time of the EASY
basic unit
Communication between the EASY6.. basic unit and the
EASY204-DP via EASY-LINK increases the cycle time of the
basic unit.
In extreme cases the cycle time may increase by 25 ms.
Bear this in mind when considering the reaction times of the
basic units.
b
a