PowerTec DFS-1 manual Message DLESTXUIDCMD0000, Smhsmldleetxcsm, Bit Psn Rml, Bit Psn Rmh

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

Revised 7/95	DFS-1 Manual	Page 53
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