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Specifications A–3
Publication 178510.3 - October 1996
This table lists specifications of each Classic PLC-5 family processor.
Processor Maximum
Local Racks
Supported
Maximum
Remote Racks
Supported
I/O Capacity Memory
(Words)
Program Scan
Time
Communication Memory
Modules
(optional)
Battery
PLC5/10 4
(1 resident
chassis)
none
• 128 I/O with 8pt
modules
1
• 256 I/O with
16pt modules
1
• 512 I/O with
32pt modules
1
6 K 2 ms/K words
(bit logic)
8 ms/K words
(typical)
standalone
DH+
8K EEPROM
(1785MJ)
1770XY
PLC5/12 4
(1 resident
chassis)
none
• 128 I/O with 8pt
modules
1
• 256 I/O with
16pt modules
1
• 512 I/O with
32pt modules
1
standalone,
adapter
DH+
8K EEPROM
(1785MJ)
PLC5/15 4
(1 resident
chassis)
3
(up to 12
physical
devices)
• 512 I/O
1
• 512 inputs and
512 outputs
using 16 or
32pt modules
2
6K
(expands
to 14K)
standalone
scanner (local and
remote I/O)
adapter
DH+
• 4K RAM
expansion,
1785MR
• 8 K RAM
expansion,
1785MS
• 8K
EEPROM
(1785MJ)
PLC5/25 4
(1 resident
chassis)
7
(up to 28
physical
devices)
• 1024 I/O
1
• 1024 inputs and
1024 outputs
using 16 or
32pt modules
2
13 K
(expands
to 21K)
2 ms/K words
(bit logic)
8 ms/K words
(typical)
standalone
scanner (local and
remote I/O)
adapter
DH+
• 4K RAM
expansion
(1785MR)
• 8 K RAM
expansion
(1785MS)
• 8K
EEPROM
(1785MJ)
• 16K
EEPROM
backup,
1785MK
1
Any mix of I/O.
2
Maximum I/O possible using 16pt modules with 2slot addressing or 32pt modules with 1slot addressing. Modules must alternate IOIOIO in the
chassis slots.
Processor Specific