Siemens SIMATIC OP 77B User manual

A5E00280514
Edition 03/2004
SIMATIC HMI
OP 77B
Operating Instructions
(Compact)
Contents
Overview
Technical Data
Installing the
OP 77B
Connecting the
OP 77B
Operating the
OP 77B
Alarms and
Recipes
Index
Order No.: 6AV6691-1EA01-0AB0

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Safety Guidelines
This manual contains notices intended to ensure
personal safety, as well as to protect the products and
connected equipment against damage. These notices
are graded according to severity by the following texts:
Danger
indicates that death or severe personal injury will result
if proper precautions are not taken.
Warning
indicates that death or severe personal injury can result
if proper precautions are not taken.
Caution
used with the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in
minor or moderate injury.
Caution
used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided,
may result in property damage.
Notice
indicates that unwanted events or status can occur if
the relevant information is not observed.

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Operating safety and safety regulations
Detailed information on operating safety and the
applicable safety regulations is provided in the
"OP 77B" operating instructions.
Voltage supply
Warning
The OP 77B complies to Protection Class I in
accordance with EN 61131-2 and EN 50178.
Ensure safe electrical insulation of the power supply.
Only use mains power supply units which fulfill the
standards for SELV and PELV.
When dimensioning the power supply, take a voltage
drop in the connection cable into account!
Operating Instructions (Compact)
–
for
professionals
Important information on the OP 77B is summarized in these
Operating Instructions (Compact).
Operating Instructions
Detailed information on the OP 77B is provided in the "OP 77B"
operating instructions.
Migration
Information on migration of existing OP7 and C7-633 projects to
WinCC flexible is provided in the "WinCC flexible Migration"
operating instructions.
PDF files on this topic are also available in Internet under
http://www.ad.siemens.de/simatic/index_76.htm.

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Editor and Publisher
A&D AS SM ID 5
Printer
A&D AS EWK
Copyright Siemens AG 2004 All rights reserved
The reproduction,
t
ransmission or use of this document or its
contents is not permitted without express written authority.
Offenders will be liable for damages. All rights, including rights
created by patent grant or registration of a utility model or
design, are reserved.
Disclaimer of Liability
We have checked the contents of this manual for agreement
with the hardware and software described. Since deviations
cannot be precluded entirely, we cannot guarantee full
agreement. However, the data in this manual are review
e
d
regularly and any necessary corrections included in subsequent
editions. Suggestions for improvement are welcomed.
Siemens AG
Automation & Drives
SIMATIC Human Machine Interface
Postfach 4848, D-90327 Nürnberg
Siemens AG 2004
Technical data subject to change.
Order No.: 6AV6691-1EA01-0AB0

Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 v
Contents
0 Contents
1Overview
1.1 HMI Device Design............................................ 1–1
1.2 Options.............................................................. 1–3
1.3 Miscellaneous ................................................... 1–4
1.4 Scaled Drawings ............................................... 1–4
1.5 Description of Interfaces.................................... 1–5
2Technical Data
3Installing the OP 77B
3.1 EMC Guidelines................................................ 3–1
3.2 Installation Position and Fixation ....................... 3–2
3.3 Producing the Installation Cut-Out..................... 3–3
4Connecting the OP 77B
4.1 Connecting the Potential Equalization............... 4–2
4.2 Connecting the PLC.......................................... 4–3
4.3 Connecting the Configuration Computer............ 4–6
4.4 Connecting Peripheral Equipment..................... 4–7
4.5 Connecting the Power Supply ........................... 4–8

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5Operating the OP 77B
5.1 Front Side Operating Elements and Indicators...5–1
5.2 Further Operating Elements...............................5–2
5.3 Operating the Project.........................................5–7
5.4 Input Within a Project.......................................5–10
5.4.1 Numeric values.............................................5–10
5.4.2 Alphanumeric values.....................................5–11
5.4.3 Entering numeric and
alphanumeric characters...............................5–12
5.4.4 Correcting input ............................................5–14
5.4.5 Entering symbolic values ..............................5–16
5.4.6 Entering date and time..................................5–17
5.5 Calling Help on a Project..................................5–17
5.6 Logging On and Off..........................................5–18
5.7 User Administration in a Project.......................5–19
5.7.1 Log on user...................................................5–21
5.7.2 Setting up a user...........................................5–22
5.7.3 Changing passwords ....................................5–24
5.7.4 Deleting a user name....................................5–24
6Recipes and Alarms
6.1 Operating Recipes .............................................6–1
6.2 Operating Alarms...............................................6–8
7Index

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 1–1
Overview
1 Overview
1.1 HMI Device Design
1
3
2
1 Display
2 LED display
3 Membrane keyboard
Figure 1–1 Front view
1

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2
5
4
1
3
3
1 Memory card holder
2 Memory card slot for an MMC
3 Slot for wrench
4 Guides for the labeling strips
5 Rubber seal
Figure 1–2 Side view
12 4 53
1 Connection for the power supply
2 RS 422/RS 485 interface
(MPI/PROFIBUS DP-interface)
3 Ground connection
4 RS 232 interface (serial interface)
5 USB interface
Figure 1–3 Bottom view

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 1–3
Overview
1.2 Options
Memory card
An MMC (Multi Media Card), tested and approved by
Siemens AG can be used as an external storage
medium. The memory card is an option and can be
ordered separately.
Notice
The MMC of the SIMATIC S7 controller cannot be
used.
Accessory kit
Plug for the power supply
(terminal block) 1 piece
Spring terminals for installing the HMI
device 4 pieces
Supplement
The Supplement is only applicable for the
HMI device with the foll
o
wing identification
on the rear:
1 piece

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1.3 Miscellaneous
Labeling strips
Labeling strips are not supplied as accessories. If
necessary, these can be produced using the template
supplied. The template can be found on the installation
computer after installing WinCC flexible and on the
"WinCC flexible" installations CD under
...\Documents\slide77b.doc.
1.4 Scaled Drawings
134
6,2
38,5
170
150
186
Figure 1–4 Main dimensions of the OP 77B

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 1–5
Overview
1.5 Description of Interfaces
Power supply
21
Plug connector, 2-pin
Pin Assignment
1 +24 V DC
2 GND
Figure 1–5 Pin assignment for power supply
RS 422/RS 485 (IF 1B)
15
96 Sub-D socket, 9-pin,
secured by screws
Pin Assignment with
RS 422 Assignment with RS 485
1 N. c. N. c.
2 M M
3 TxD+ LTG-B
4 RxD+ RTS-AS
5 GND, potential-free GND, potential-free
6 DC +5 V, potential-free DC +5 V, potential-free
7 DC 24 V in DC 24 V in
8 TxD- LTG-A
9 RxD- RTS-AS
Figure 1–6 RS 422 and RS 485 interface pin assignments

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RS 232 (IF 1A)
15
96 Sub-D plug, 9-pin,
secured by screws
Pin Assignment
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 N. c.
Figure 1–7 RS 232 interface pin assignment
1
2
3
4
5
6
7
8
9
Figure 1–8 Pin switching
USB
14
USB standard connector
Pin Assignment
1 DC +5 V, max. 100 mA
2 USB-DN
3 USB-DP
4 GND
Figure 1–9 USB standard connector pin assignment

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 2–1
Technical Data
2 Technical Data
Housing
Degree of protection
• Front panel
• Rear panel
IP65,
NEMA 4X/NEMA 12 indoor use only
IP20
Weigh – without packing Approx. 500 g
Display
Type STN
Screen area, active 102.38 x 40.94 mm
Resolution 160 x 64 pixels
Pixel size 0.62 x 0.62 mm
Colors, possible Monochrome, yellow-green
Contrast control Yes
Brightness, typical 20 cd/m2
Back-lighting –
Half Brightness Life, typical 100,000 h
Keyboard
Type Membrane keyboard
System keys with dedicated functions 23
Softkeys
Configurable as softkeys
8
8
Labeling strips 2 for keys:
F1 to F4 and K1 to K4
Keys with LED 4, keys K1 to K4
2

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Memory
Working memory 1 MByte
Memory card MMC, optional
Power supply
Rated voltage
Range, permissible
24 V DC
+18 V to +30 V
Transients, maximum permissible 35 V (500 msec)
Time between two transients,
minimum 50 s
Power consumption
• Typical
• Constant current, maximum
• Power on current surge I2t
• USB interface
Approx. 200 mA
Approx. 300 mA
Approx. 0.5 A2s
Approx. 100 mA
Fuse, internal Electronic

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 3–1
Installing the OP 77B
3 Installing the OP 77B
3.1 EMC Guidelines
Electromagnetic compatibility
The HMI device fulfills the requirements stipulated in
the law on EMC in Germany as well as the EMC
guidelines of the European Union.
Installing HMI devices conform to EMC
requirements
Preconditions for errorfree operation are a PLC design
compliant with EMC requirements and the use of
interferenceproof cables. The "guidelines for
interference-free construction of PLCs" and the
"PROFIBUS network" manual apply for the installation
of the HMI device.
Note
The term "switching cabinet" subsequently used also
relates to the installation cabinets, front panels and
consoles.
3

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3.2 Installation Position and Fixation
Installation positions
2
1
Installation
position Max. permissible ambient temperature
1 vertical 50 °C
2 horizontal 40 °C
Figure 3–1 Permissible ambient temperatures without
external ventilation
If the unit is installed horizontally and the permissible
ambient temperature is exceeded, external ventilation is
necessary. In general, ambient temperatures exceeding
50 °C are impermissible.
Caution
If the HMI device is used at a temperature exceeding
the maximum permissible temperature without any
external ventilation, the terms of warranty complying to
UL 508 are annulled!

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 3–3
Installing the OP 77B
Type of fixation
Spring terminals are provided for installation in a
switching cabinet. Install them in the slots as illustrated
in the figure below.
Figure 3–2 Installing the spring terminals
3.3 Producing the Installation Cut-Out
Warning
Danger, high voltage
After opening the switching cabinet, parts become
exposed which conduct voltage levels that could prove
fatal on contact.
Switch off the power supply to the switching cabinet
before opening it.
When selecting the installation cut-out, ensure that the
installation surface around the installation cut-out is
stable. If necessary, install reinforcements.

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Caution
The degree of protection against water and dust can
only be guaranteed when the following is maintained:
• Material thickness for the installation cut-out
2 mm to 6 mm
• Deviation of the installation cut-out to the horizontal
plane in respect of the overall dimensions of the HMI
device:
≤0.5 mm
• Permissible surface roughness in the area of the
installation seal:
≤120 µm (Rz120)
An installation cut-out complying to the figure below is
required:
135 +1
171 +1
Figure 3–3 Installation cut-out
Ensure that the switching cabinet has enough space to
allow a sufficient circulation of air.

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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0 4–1
Connecting the OP 77B
4 Connecting the OP 77B
Conditions
• Installation of the HMI device in accordance with the
specifications in the operating instructions
Electrical connections
Connect the HMI device in the following sequence:
 Potential equalization line
 PLC
 Configuration computer, if necessary
 Peripheral equipment, if necessary
 Power supply
Notice
Connection sequence
Please observe the sequence of HMI device
connections. Failure to do so may result in damage to
the HMI device.
When disconnecting the connections, ensure it is done
in the reverse sequence.
Connecting the cables
When connecting the cables, ensure that the contact
pins are not bent. Secure the cable plug, if possible,
with screws.
4

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4.1 Connecting the Potential
Equalization
Connection configuration
1
2
4
5
33
1 Grounding connection on the HMI device
2 Grounding cable
3 Switching cabinet
4 Grounding connection
5 Potential equalization line
Figure 4–1 Potential equalization line connection
Notice
Potential equalization line
Line shields are not suitable for potential equalization.
Only use the potential equalization lines recommended
– refer to Figure 4–1. Potential equalization lines, for
example, must have a minimum cross-section of
16 mm2. When setting up MPI and PROFIBUS DP
networks, ensure cables with a sufficient cross-section
are used otherwise the interface modules may be
damaged or even destroyed.