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Status -1 byte
0x00 = Saved and verified
0x01 = Key code invalid
0xff = Error, not saved
Lock Keyboard - 0x53
This command allows you to lock out the keyboard. The keyboard can be disabled, preventing
unauthorized user intervention by enabling the keypad lock out and sending a valid key code.
This allows only persons with the key code to operate the keypad.
Command packet to instrument:
Command Code (0x53) - 1 byte
Keypad Status -1 byte
bit 0: Lock or unlock keypad
0 = Unlocked
1 = Locked
bits 1-7: Undefined
Key code - 2 bytes (valid 0000 - 9999)
Response packet from instrument:
Command Code (0x53) - 1 byte
VC4™ Date - 2 bytes
VC4™ Time - 2 bytes
Status -1 byte
0x00 = Saved and verified
0x01 = Key code invalid
0xff = Error, not saved
Set 2mA Fault Operation - 0x54
This command configures the unit for an output option of 2 milliamperes rather than the
default 4 milliamperes.
Command packet to instrument:
Command Code (0x54) - 1 byte
Enable/Disable - 1 byte
0 = Featured disabled
1 = Feature enabled
VC4™
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