Rockwell Automation 1771-QB Linear Pos. - Manual (Page 72)

Interpreting ModuleĆtoĆPLC Data
(READS)
Chapter 6
6Ć11
Table 6.A
Error Codes
Code Definition
00 No errors detected
01 Invalid block identifier
02 NonĆBCD number entered
03 Invalid bit setting, unused bits must be set to zero
04 Data is out of range
05 Invalid number of axes programmed
06 Setpoint is not defined
07 Setpoint commanded while in manual mode
08 Position exceeds a software travel limit
09 Attempted to switch to auto mode with axis in motion
10 Attempted to switch to manual mode with axis in motion
11 Velocity exceeds maximum
12 High jog rate > maximum velocity
13 Low jog rate > high jog rate
14 Maximum PID error must be outside the PID band
15 Incorrect block length
16 First block after powerup must be a parameter block
17 Negative travel limit positive travel limit
18 Jog commanded while in auto mode
19 Forward and reverse jogs commanded simultaneously
20 Block transfer write attempted before module confirmed all power on wiring arm
21 Specified velocity exceeds maximum velocity for direction of motion
22 Motion segment ID not defined
23 Motion segment commanded while in manual mode
24 A motion segment is attempting to use an output which is not configured as a
programmable output
25 Motion segment ID previously defined in same motion block
Position Information (words 4, 5; 8, 9; 12, 13; and 14, 15)
The position words give the present position measured at the transducer. The
position information is in either BCD or binary format. You choose the format
you want through the parameter block. Binary format is compatible with integer
data (16-bit 2’s complement) used by PLC-5 family programmable controllers.
See Appendix H for an explanation of numbering formats.
The maximum position displayed is
±
799.900 inches or
±
7999.00 millimeters.
If the status words 4, 5 and 8, 9 are specified in the command block to display
position, when the axis exceeds the maximum, the maximum is displayed and
the position valid bit in the second status word turns off.