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10 - 16 SE955 Integration Guide
DISABLE ALL SYMBOLOGIES
Description: Disable all code types
Packet Format
Length
0x04
0xC9
Field Descriptions
Field Name
Length
Opcode
Message Source
Status
Disable
Symbologies
Checksum
Host Requirements
All scan attempts are disabled by this command until either a SCAN_ENABLE is sent, or the decoder is reset.
Decoder Requirements
When the decoder receives this command, it ignores all trigger/START_DECODE requests until a
SCAN_ENABLE command is received.
Opcode
Message Source
0x04
Format
Length of message (not including
checksum)
0xC9
4 = Host
Bit 0: Retransmit
Bit 1: Continuation bit
Bit 2: Unused
Bit 3: Change Type
Bits 4-7: Unused
0
2's complement sum of message
contents excluding checksum
Status
Data
Checksum
Size
1 Byte
Length field
1 Byte
Identifies this Opcode type
1 Byte
Identifies where the message is
coming from
1 Byte
Bit 0:
0 = First transmission
1 = Subsequent transmission
Bit 1:
0 = Last frame of multipacket message
1 = Intermediate packet of multipacket
message
Bit 3:
0 = Temporary change - lost when
power removed
1 = Permanent change
Unused bits must be set to 0
1 Byte
0 = Disable All Symbologies
All other values - reserved
2 Bytes
Checksum of message
Description
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