Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 266)

Communications
Chapter 9
9-6
PARITY (parity check)
Select the parity from the following parity check schemes:
Parity Parity Check
NONE No parity check
EVEN Even parity
ODD Odd parity
See the documentation provided with your peripheral device.
STOP BIT (number of stop bits)
Select the number of stop bits with this parameter. You can select:
1, 1.5, or 2 bits
See the documentation provided with your peripheral device.
DATA LENGTH
Select the number of bits that constitute one character with this parameter.
You can select:
7 or 8 bits
The parity bit is not counted as a data length bit. See the documentation
provided with your peripheral device.
TIME-OUT
Select the time-out value that specifies how long the control tries to
establish communications with a peripheral. If the control cannot establish
communications within the specified time-out period, an error message is
displayed on the control’s CRT. You can select:
3, 15, 30, or 60 seconds
or
2, 3, 5, or 10 minutes
or
UNLIMT (no time-out)