Siemens simatic hmi op27 Equipment Manual page 22

Hardware
Interfaces Serial communications
port for
connection to PLC,
PC/PU, printer
Parallel interface for
connecting a printer
Processor
Type
Clock rate (MHz)
Memory Flash EPROM for firm-
ware and user data (MB)
DRAM main memory
(MB)
Buffered SRAM (KB)
Hardware
Special features Hardware clock (battery–
backed)
Relay output for tempera-
ture monitoring
Use of an external
MF2 keyboard
Use of an external PS2
keyboard
Use of an external PS2
mouse
DOS mode
Module slot for PCMCIA/
JEIDA cards
1)
Can only be used for BIOS setup and in DOS mode
2)
Can only be used in DOS mode
3)
Slot A can only be used for DOS mode, Slot B for OP and DOS modes
Options
Direct key Digital outputs, triggered
module optionally by means of
S
direct keys
S
configurable outputs
Control Panel Digital inputs/outputs
4)
Interface
OP27, OP37 Equipment Manual
Release 05/99
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
OP27M OP27C
2 x RS232/TTY
(active/passive)
1 x RS422/RS485
–
80486
33
1
2 4
128
OP27M OP27C
4
–
–
–
–
–
1
OP27M OP27C
8
8
16 or 32
Product Description
OP37
2 x RS232/TTY
(active/passive)
1 x RS422/RS485
1 x TTY (passive) /
RS422/RS485
1 x TTL
(Centronics)
Pentium
100
2
8
OP37
4
4
1)
4
1)
4
2)
4
2
3)
(Slot A and Slot B)
OP37
12
16
1-7