Specifications for SIMATIC 
HMI devices for machine control and monitoring

Graphics-oriented panels with <6" display


Graphics-oriented operator panel
Display: 4.5" mono LCD display, MTBF approx. 100,000h
Resolution: 160 x 64 
Character height : various font sizes possible
Service concept  : Prosave for BackUp/Restore
Keyboard         : Membrane keyboard, 23 system keys, 8 function keys, all 
of which are configurable as softkeys 4 keys with LEDs
freely configurable message classes with up to 1000 messages
Message buffer: 256 entries
Process images   : 500
Info texts: on messages, process images and recipes
User-oriented password system with as many as 32 users and 10 user groups
Clock           : Software clock, no battery backup, synchronizable
Interface options: SIMATIC S7 200/300/400 via MPI or Profibus DP up to 
1.5MB
Additional features: Online language switching with up to 5 languages, 32 
configuration languages including Asian and Cyrillic 
configuration software under Windows2000/XP, graphics, 
bar graph displays, text lists, signal lamps, switches
Supply voltage                   : 24 V DC
Temperature range: 0 to 50?C (if installed vertically)
Degree of protection, front      : IP 65, NEMA4
Approvals                        : CE, cULus/CSA, FM, C-Tick, EX Zone 2/22
Front panel (W x H) in mm        : 150 x 186
Installation cutout (w x h x d) in mm 135 x 171 x 38.5
Communication interfaces         : 1 x RS458/422

Manufacturer/Type: SIEMENS Operator Panel SIMATIC OP 77A
or equivalent



Order Nos.: 6AV6 641-0BA11-0AX0