Description
Product type designation OP 77A
Customer-specific configuration No
Display
Design of display STN
Screen diagonal 4.5 in
Color display No
Number of colors 2; Black/white
Resolution (pixels)
Horizontal image resolution 160 Pixel
Vertical image resolution 64 Pixel
Backlighting
MTBF backlighting (at 25 °C) 100 000 h
Control elements
Control elements Membrane keyboard
Keyboard fonts
Membrane keyboard
— user-definable label membrane keys Yes
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11/25/2019 © Copyright Siemens Function keys Yes
— Number of function keys 8
— Number of function keys with LEDs 4
System keys Yes
— Number of system keys 23
Numeric keyboard Yes
alphanumeric keyboard Yes
hexadecimal keyboard Yes
Multi-key operation Yes
Touch operation
Design as touch screen No
Connection type
Type of connection for
mouse/keyboard/barcode reader
– / – / –
Installation type/mounting
Mounting position vertical
maximum permissible angle of inclination without
external ventilation
80°
Supply voltage
Type of supply voltage DC
Input current
Current consumption (rated value) 0.2 A
Starting current inrush I²t 0.5 A²·s
Processor
Processor type ARM
Product Dimensions：
Memory
Type of memory Flash / RAM
Memory available for user data 256 kbyte
Type of output
Info LED Yes
Power LED No
Error LED No
Time of day
Clock
Type Software clock, no battery backup
retentive No
synchronizable No
Interfaces
Interfaces/bus type 1x RS 422, 1x RS 485 (max. 1.5 Mbit/s)
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11/25/2019 © Copyright SiemensNumber of industrial Ethernet interfaces 0
Number of RS 485 interfaces 1
Number of RS 422 interfaces 1
Number of USB interfaces 0
PC card slot No
CF card slot No
Multimedia card/SD card slot No
Protocols
Supports protocol for PROFINET IO No
PROFIsafe No
PROFIBUS Yes
Protocols (Ethernet)
TCP/IP No
Further protocols
EtherNet/IP No
MODBUS No
other bus systems Yes
Degree and class of protection
IP (at the front) IP65
NEMA (front) NEMA 4x, NEMA 12 (when installed)
IP (rear) IP20
Standards, approvals, certificates
cULus Yes
EAC (formerly Gost-R) No
Suitable for safety functions No
Use in hazardous areas
ATEX Zone 2 Yes
ATEX Zone 22 Yes
FM Class I Division 2 Yes
Marine approval
Germanischer Lloyd (GL) Yes
American Bureau of Shipping (ABS) Yes
Bureau Veritas (BV) Yes
Det Norske Veritas (DNV) Yes
Lloyds Register of Shipping (LRS) Yes
Nippon Kaiji Kyokai (Class NK) Yes
Polski Rejestr Statkow (PRS) No
Ambient conditions
Ambient temperature during operation
min. 0 °C
max. 50 °C
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11/25/2019 © Copyright SiemensAmbient temperature during storage/transportation
min. -20 °C
max. 60 °C
Relative humidity
Operation, max. 90 %
Operating systems
pre-installed operating system LINUX
Configuration
Message indicator Yes
Alarm system (incl. buffer and acknowledgment) Yes
Process value display (output) Yes
Process value default (input) possible Yes
Recipe management No
Configuration software
Configuration tool WinCC flexible Compact Version 2004 SP 1 and higher; HSP OP
77 (to be ordered separately)
STEP 7 Basic (TIA Portal) No
STEP 7 Professional (TIA Portal) No
WinCC flexible Compact Yes
WinCC flexible Standard Yes
WinCC flexible Advanced Yes
WinCC Basic (TIA Portal) No
WinCC Comfort (TIA Portal) Yes
WinCC Advanced (TIA Portal) Yes
WinCC Professional (TIA Portal) Yes
Languages
Online languages
Number of online/runtime languages 5
Project languages
Languages per project 32
Functionality under WinCC (TIA Portal)
Libraries Yes
Task planner Yes
Help system Yes
Number of characters per info text 320
Message system
Number of alarm classes 32
Number of messages 1 000
Bit messages Yes
— Number of bit messages 1 000
Analog messages Yes
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11/25/2019 © Copyright Siemens— Number of analog messages 1 000
Telegram message procedure Alarm S No
System messages HMI Yes
System messages PLC Yes
System messages, other (SIMATIC S7,
Sinumerik, Simotion, etc.)
No
Number of characters per message 80
Number of process values per message 8
Acknowledgment groups Yes
Message indicator No
acoustic feedback No
First/last value Yes
Recipe management
Number of recipes 5
Data records per recipe 20
Entries per data record 20
Recipe memory 32 KB integrated Flash
Variables
Number of variables per device 1 000
Number of variables per screen 30
Limit values Yes
Multiplexing Yes
Structures No
Images
Number of configurable images 500
Permanent window/default Yes
Start screen configurable Yes
Image selection by PLC Yes
Image number in the PLC Yes
Image objects
Text objects 1,000 text elements
Number of I/O fields per image 30
Index of screen context No
Return Yes
Graphics object Bit maps, icons, icon (full-screen)
— Icons 1
— Icon (full screen) 1
Complex image objects
Status/control Not possible
dynamic objects Bar graphs
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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