Rockwell Automation 855T DeviceNet Stack Light User Manual - Manual (Page 32)

4-2 Operations
Publication 855T-UM001C-EN-P May 2005
The following tables give a brief explanation of the individual parameters and their uses:
Parameter 1 — Autobaud Enable
When enabled, the stack light automatically communicates at the network baud rate detected
at power-on. When disabled, the baud rate must be set correctly by the user during node
commissioning. This parameter’s setting takes effect after a module reset or at power-on.
Note: Only valid when rotary switch is set between 3…9. The default value is Enabled.
Parameter 2 — Off-to-On Delay
The Off-to-On delay determines the amount of time for which an input signal must be fully
present before the stack light updates the I/O. It is a means of filtering for noise on input
lines. The value must be set in units of microseconds. The default is set to 0 µs to ensure
proper filtering on noisy lines, but it can be reduced depending on the application. (Not Used)
Parameter 3 — On-to-Off Delay
The On-to-Off delay determines the amount of time for which an input signal must be fully
absent before the stack light updates the I/O. It is a means of filtering for noise on input lines.
The value must be set in units of microseconds. The default is set to 0 µs to ensure proper
filtering on noisy lines, but it can be reduced depending on the application. (Not Used)
Table 4.B
Value Function Value Function
0 Enabled 1 Disabled
Table 4.C
Value ( µs) Function Value ( µs) Function
0 0 ms delay 8000 8 ms delay
2000 2 ms delay 16000 16 ms delay
4000 4 ms delay
Table 4.D
Value (
µs)
Function Value (
µs)
Function
0 0 ms delay 8000 8 ms delay
2000 2 ms delay 16000 16 ms delay
4000 4 ms delay