Commands (page per command listing) – RMS Technologies R325 DRIVER W/PDT User Manual
Page 13

RMS Technologies
Page 13
Version 1.21
R325 Single Axis Driver Manual
08/23/2007
9. COMMANDS (Page per Command Listing)
Protocol Syntax
Command Format: #<Address><Command><value><CR><LF>
Example: #AHT1000<CR><LF>
Sets the Hold Timeout for Driver A to 1000
To query a command use the following format
Query Format: #<Address><Command><CR><LF>
Example:
#AFR<CR><LF>
Queries
Driver
A
for
the current Firmware Revision
The response would be in the following format
Response Format: *<Address><value>
Example:
*AFR325100
R325
firmware
revision
1.00
<CR><LF> stand for "Carriage Return" and "Line Feed" respectively. These are NOT
characters to be typed in. For direct keyboard users, these values are executed when
the "Return" key is pressed. For programmers, a "Carriage Return" and "Line
Feed" (also known as a "New Line") command needs to be executed after each
command.
Command
(Case Sensitive)
Operand
Example
Description
HT 100 -5000
#AHT100
Sets the Hold
Timeout to 100
mS
Hold Timeout - Command or Query
Default = 5000
- Reads or sets the time interval in milliseconds after any
motor movement, before the motor current is changed from
Run Current to Hold Current.
PF 0 - 3
#ACD1
Sets Mixed
Mode damping
to 15%
Percent Fast Decay - Command or Query
Default = 2
- Allows the Damping Mode of the driver IC to be set.
0 = Fast Decay
1 = Mixed Mode 15%
2 = Mixed Mode 48%
3 = 100%
The optimum setting will vary with motor inductance and
step rate; however the default ‘Mixed Mode’ setting will work
well with almost all motors.
FR -
#AFR
Firmware Revision - Query Only
- Returns 3 digit part code followed by 3 digit firmware
revision value.
Reply
*AFR325100 //R325 firmware revision 1.00