Allen-Bradley 1785 PLC-5 User Manual

Addressing Reference
1785 PLC-5
11
This word of
the status file:
Stores:
S:28 Program watchdog setpoint
S:29 Fault routine file
S:30 STI setpoint
S:31 STI file number
S:32 Global status bits:
• low 8 bits – rack fault bits for racks 10-17 (octal)
• high 8 bits – rack queue-full bits for racks 10-17
S:33 Rack control bits:
• low 8 bits – I/O rack inhibit bits for racks 10-17
• high 8 bits – I/O rack reset bits for racks 10-17
S:34 Global status bits:
• low 8 bits – rack fault bits for racks 20-27 (octal)
• high 8 bits – rack queue-full bits for racks 20-27
S:35 Rack control bits:
• low 8 bits – I/O rack inhibit bits for racks 20-27
• high 8 bits – I/O rack reset bits for racks 20-27
S:46 PII program file number
S:47 PII module group
S:48 PII bit mask
S:49 PII compare value
S:50 PII down count
S:51 PII changed bit
S:52 PII events since last interrupt
S:53 STI scan time (in ms)
S:54 STI maximum scan time (in ms)
S:55 PII last scan time (in ms)
S:56 PII maximum scan time (in ms)
S:57 User program checksum
S:59 Extended-local I/O channel discrete transfer scan (in ms)
S:60 Extended-local I/O channel discrete maximum scan (in ms)
S:62 Extended-I/O channel maximum block-transfer scan (in ms)
S:63 Protected processor data table protection file number

Allen-Bradley 1785 PLC-5 Specifications

General

Manufacturer	Allen-Bradley
Memory Size	Up to 64K words
Programming Language	Ladder Logic
Series	PLC-5
Communication Ports	DH+