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Page 53
Revised 7/95 DFS-1 Manual
POWERTEC Ind. Corp.©
Message:
[DLE][STX][UID][CMD][00][00]
[SMH][SML][DLE][ETX][CSM]
Response:
If no errors
[DLE][STX][UID][ACK][DLE][ETX][CSM]
else
[DLE][STX][UID][NAK][ERR][DLE][ETX][CSM]
Definitions:
[ERR] - Reported Error
[80] - Unit not in remote. Returned if this
command is sent and remote mode is not
allowed in parameter 3.
[86] - Illegal Command number.
[87] - Illegal input number.
[88] - Illegal input value. Returned if remote
mode is allowed but the specific input asked to
be changed is not allowed in remote by param-
eter # 3.
Read Operational Mode (8E)
Command: Read Operational Mode
Description:
This command tells the unit to return the current
status of the commands which are active whether
from hardwired inputs or by remote. Note that run,
for instance may not be allowed by param #3 from
the terminal strip, but could be active from the comm
link, or for that matter may even be mapped to
operate from a different digital input. THE STATUS
SHOWN HERE HAS NOTHING DIRECTLY TO
DO WITH THE STATUS OF THE DIGITAL
INPUTS EXCEPT FOR E-STOP STATUS
WHICH IS ALWAYS HARDWIRED TO INPUT
# 1. THE OTHER COMMANDS MAY OR MAY
NOT BE ACTIVE FROM THE HARDWIRED
INPUTS OR COULD BE REMAPPED. DO NOT
BE CONFUSED BETWEEN COMMANDS
SUCH AS RUN, STOP, REVERSE AND THE
SOURCE OF THOSE COMMANDS WHICH
MAY BE ANY OF THE DIGITAL INPUTS,
EITHER OF THE TWO COMM INPUTS, OR
INTERNAL SOFTWARE IN SPECIAL CASES.
If you wish to determine the status of the digital
inputs you must use command 8A (Read Digital
Input).
CMD = [8E]
UID = [01] - [FF]
Message:
[DLE][STX][UID][CMD][DLE][ETX][CSM]
Response:
If no errors
[DLE][STX][UID][ACK][00][00]
[RMH][RML][DLE][ETX][CSM]
else
[DLE][STX][UID][NAK][ERR][DLE][ETX][CSM]
Example: If the drive was in remote mode (from
Parameter #3) and if the input assignments were the
factory defaults, and the drive was in run, reverse,
Down and not E-Stopped, then the value for [RML]
would be constructed as follows:
7 6 5 4 3 2 1 0 Bit Positions
0 0 1 1 0 0 1 1 Input Status
[3 3] [RMH][RML]= [00][33]
BIT PSN RML
where: 0 is E-stop
1 is Run
2 is Preset
3 is Up input
4 is Down input
5 is Reverse mode
6 is Frequency mode
7 is Local/Remote (0 for local)
BIT PSN RMH
where: 0 is unused
1 is Jog
2 is Preset 2
3 is Contactor Aux
Definitions:
[ERR] - Reported error
[82] - Illegal parameter number
[86] - Illegal Command number