Matrix Orbital PK202-25 - Manual (Page 31)

Table 13: Default Screen
Character 1 Character 20
Character 21 Character 40
If sending more than 10 characters to be stored, add in a ~10ms per character delay. Predefined custom
characters can be used in the “Start up Screen” as well, by using 0x00 through 0x07 characters.
6.1.8 General purpose output off (254 86 [gpo #])
This command turns OFF any of the general purpose outputs. [gpo #] is 1 to 6. Note that OFF means
that the output is high.
6.1.9 General purpose output on (254 87 [gpo #])
This command turns ON any of the general purpose outputs. [gpo #] is 1 to 6. ON means that the output
is pulled low (ground via 240 ohms).
6.1.10 Remember GPO State (254 195 [gpo#][gpo value])
This command will set the startup state of all the GPO’s. When the device is powered up the next time,
the GPO’s will be set to the values from this command. [gpo#] is referenced to the GPO in which you select
to remember. [gpo value] is referenced to the state of the gpo that is to be remembered. “1” being “on” and
“0” being “off”.
6.1.11 Set I 2 C address (254 51 [address]) (R)
This command sets the I 2 C write address of the module. This value must be an even number and the read
address is one higher. For example, if the I 2 C write address is set to 0x50, then the read address is 0x51. The
change in address is immediate. This address is 0x50 by default, and is reset temporarily back to that value
when the ’manual over-ride’ jumper is used on power up.
6.1.12 Read module type (254 55)
This command will return a 1 byte hex value, over the RS-232 interface only, the model type value of
the module. Values for various modules at the time of this publication are as follows:
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