Applied Motion RS-232 - Manual (Page 260)

260 920-0002 Rev. I
2/2013
Host Command Reference
Appendix F: Working with Inputs and Outputs
This Appendix covers I/O usage on drives from Applied Motion Products.
Low v. High
When working with inputs and outputs it is important to remember the designations low and high. If current
is flowing into or out of an input or output the logic state for that input/output is defined as low or closed. If no
current is flowing, or the input/output is not connected, the logic state is high or open. A low state is represented
by the “L” character in parameters of commands that affect inputs/outputs. For example, WIX4L means “wait for
input X4 low”, and SO1L means “set output 1 low”. A high state is represented by the “H” character.
When working with the analog inputs, “L” designates an analog value lower than the value set by the AT
command. Similarly “H” designates an analog value greater than the value set by the AT command.
“X” Marks The Spot
When using a dual input command, both I/O points used must reside on the same connector. That is, if an
“X” input such as X2 is used for the first input, the second input is assumed to use an “X” as well since it must
reside on the same connector. Since it is not possible to mix I/O from different banks, there is no need for the “X”
character on the second I/O point. See the “Parameter Details” section in the tables below for specific details.
Parameter Details
The following tables show general I/O details for commands as they relate to specific drives. There are
exceptions to these general rules, so be sure to check the command pages for the specific SCL commands
you wish to implement, as well as the list of exceptions at the end of this section. For specific voltage or wiring
questions, consult your drive’s hardware manual.
Input Parameter Details
BLu-S, BLu-Q
STAC6-S, STAC6-Q, STAC6-C
Parameter #1 Optional “X”, input number, input condition
NOTE: Including/omitting the optional “X” has no effect on the execution
of the command.
- units Optional “X”, integer, letter
- range - integer: 0 (encoder index, if present), 1 - 7, 8 (Analog Command),
9 (AIN1), : (AIN2)
- letter: L = Low, H = High, F = Falling Edge, R = Rising Edge
Parameter #2 Input number, input condition
- units integer, letter
- range - integer: 0 (encoder index, if present), 1 - 7, 8 (Analog Command),
9 (AIN1), : (AIN2)
- letter: L = Low, H = High, F = Falling Edge, R = Rising Edge