Dedicated discrete i/o specifications, Serial i/o specifications – Rockwell Automation 1326 Digital AC Multi-Axis Motion Control System User Manual User Manual
Page 210

Publication 1394-5.0 — May 2000
A-12
Specifications
Dedicated Discrete I/O Specifications
The table below lists the dedicated discrete I/O specifications for the
system module (1394x-SJTxx-C-xx, -L-xx, and -T-xx systems).
Serial I/O Specifications
The table below lists the dedicated serial I/O specifications for the
system module (1394x-SJTxx-C-xx, -L-xx, and -T-xx systems).
The:
Is:
Number of dedicated discrete
inputs
16 (4 each for axis 0, 1, 2, and 3)
Dedicated discrete input
functions
Home limit switch, positive overtravel limit switch, negative
overtravel limit switch, position registration, and thermal
fault.
Input type
Optically isolated
Operating voltage
24V DC, 28V DC maximum or 5V DC nominal; 10V DC
maximum for position registration inputs
Input On current
12 mA per input (nominal); 2.5 mA for position registration
inputs
Input impedance
2 kohms (resistive) per input; 8.8 kohms (resistive) for 24
V position registration inputs.
Input response time
5 ms maximum; 1
µ
s maximum for position registration
inputs
The:
Is:
Number of serial channels
2 (serial port A and serial port B)
Channel type
Optically isolated RS-232 or RS-422; each channel
individually configured via internal switch
Information code
ASCII
Baud rate
User-selectable up to 128 kbaud (rs-422); 115.2 kbaud
(RS-232)
Number of start bits
One
Number of stop bits
One
Word length
8 bits (7 data bits plus 1 parity bit)
Parity
Space parity transmitted; receive parity ignored (may be
mark, space, even, or odd)
Duplex
Full or half (user-selectable)
Data synchronization
XON (control-q)/XOFF (control-s)
Front panel connectors
IBM-PC/AT compatible 9-pin D-type female
RS-422 termination
User-selectable 220 ohm resistor via internal switch