Matrix Orbital LK404-25 - Manual (Page 23)

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6.4 General Purpose Output
4.1 General Purpose
Output On Dec
Hex
ASCII 254 87
FE 57
■ W
Number
Number
Number v5.0
Turns the specified GPO on, sourcing current from an output of five volts.
Number Byte GPO to be turned on.
4.2 General Purpose
Output Off Dec
Hex
ASCII 254 86
FE 56
■ V
Number
Number
Number v5.0
Turns the specified GPO off, sinking current to an output of zero volts.
Number Byte GPO to be turned off.
4.3 Set Start Up
GPO State Dec
Hex
ASCII 254 195
FE C3
■ ├
Number State
Number State
Number State v5.0
Sets and saves the start up state of the specified GPO in non volatile memory. Changes will be seen on start up.
Number Byte GPO to be controlled.
State Byte 1 for on or 0 for off.
6.5 Dallas One-Wire
5.1 Search for a
One-Wire Device Dec
Hex
ASCII 254 200 2
FE C8 02
■ ╚
SOT
v5.0
Sends a search query to each of the up to 32 devices on the one wire bus. Any connected device will respond with
an identification packet.
Response Bytes [14] Dallas One-Wire identification packet as shown below.
Table 13: Dallas One-Wire Packet Information
Offset Length Value Description
0 2 9002 Preamble
2 1
138 Another device packet will follow OR
10 Last device packet
3 1 49 Packet Type
4 1 0 Error Code (0 indicates success)
5 8 Device Address
13 1 0 CRC8 address check (0 indicates validity)