u-blox ZED-F9P Interface Description - Manual
Advance Information
5.8 UBX-ACK (0x05)
Ack/Nak Messages: i.e. Acknowledge or Reject messages to UBX-CFG input messages.
Messages in the UBX-ACK class output the processing results to UBX-CFG and some other messages.
5.8.1 UBX-ACK-ACK (0x05 0x01)
5.8.1.1 Message Acknowledged
Message
UBX-ACK-ACK
Description
Message Acknowledged
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Output
Comment
Output upon processing of an input message. ACK Message is sent as soon as possible but
at least within one second.
Header
Class
ID
Length (Bytes)
Payload
Checksum
Message Structure
0xB5 0x62
0x05 0x01 2
see below
CK_A CK_B
Payload Contents:
Byte Offset
Number
Format
Scaling
Name
Unit
Description
0
U1
-
clsID
-
Class ID of the Acknowledged Message
1
U1
-
msgID
-
Message ID of the Acknowledged Message
5.8.2 UBX-ACK-NAK (0x05 0x00)
5.8.2.1 Message Not-Acknowledged
Message
UBX-ACK-NAK
Description
Message Not-Acknowledged
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Output
Comment
Output upon processing of an input message. NAK Message is sent as soon as possible but
at least within one second.
Header
Class
ID
Length (Bytes)
Payload
Checksum
Message Structure
0xB5 0x62
0x05 0x00 2
see below
CK_A CK_B
Payload Contents:
Byte Offset
Number
Format
Scaling
Name
Unit
Description
0
U1
-
clsID
-
Class ID of the Not-Acknowledged Message
1
U1
-
msgID
-
Message ID of the Not-Acknowledged Message
UBX-18010854 - R04
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