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Command descriptions, Ac - acceleration, Am - acceleration maximum – Applied Motion 1240i User Manual

Page 12: Br - bit rate, Bs - buffer status, Cc - change current

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SCL Software Manual

12

920-0010 rev B
9/26/07

Command Descriptions

AC – Acceleration

Sets accel rate in rev/sec/sec. Sending AC with no number causes drive to respond with present
accel rate. Range is 1 – 3000.
Affects: FL, FS, FP, SH
See also: DE

Example:
You send

Drive sends

AC100

nothing

AC

AC=100

AM – Acceleration Maximum

Sets maximum accel rate in rev/sec/sec. This value is used if a move encounters an end of travel limit.
It is also used by the ST and SK commands if they interrupt a move. Sending AM with no number
causes drive to respond with present accel rate. Range is 1 – 3000.
Affects: FL, FS, FP, SH
See also: AC, DE
Not available with older firmware.

Example:
You send

Drive sends

AM500

nothing

AM

AC=500

BR – Bit Rate

Changes the serial port bit rate. This can be used to increase the communication speed between the
host controller and the Si™ drive. You must change the bit rate of the host controller after sending this
command or subsequent command will not be understood by the drive. Version 1.31 of the SCL Setup
Utility has adjustable bit rates and is a usefull tool for experimenting with bit rates. Drive powers up to
9600 bits/second.
Not available with older firmware. Some drives do not support BR3 (38400 bps).

Bit Rate Codes
1 = 9600 (about 1000 characters per second)
2 = 19200 (2000 chars/sec)
3 = 38400 (4000 chars/sec)

BS – Buffer Status

Drive tells you how much space is available in the command buffer.

Example:
You send

Drive sends

note

BS

BS=128

there is room for 128 additional characters

CC – Change Current

Changes current setting of drive. Also allows you to request present current setting. When you set the
current with the CC, the idle current is automatically set to 50%.
Affects: FL, FS, FP, SH, WI (jogging)
See also: PC, CI

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