BlackKite, Vehicle Tracking System User Manual
Rev. 1.4.0
Zilogic Systems
Page 48
Digital Outputs
• Tag Type: 0x45
• Length: 2 bytes
• Format: Each bit indicates status of one digital output. Bit position 0, corresponds to digital
output 1, and so on.
• Example: If digital outputs 1 and 3 are low, and rest of the output are high, the field is rep-
resented as
FA FF
.
Digital Inputs
• Tag Type: 0x46
• Length: 2 bytes
• Format: Each bit indicates status of one digital input. Bit position 0, corresponds to digital
input 1, and so on.
• Example: If digital inputs 1 and 3 are low, and rest of the inputs are high, the field is repre-
sented as
FA FF
.
Analog Input 1 - 2
• Tag Type: 0x50 - 0x51
• Length: 2 bytes
• Format: Voltage at the input pin in mV, as unsigned integer.
• Example: If the analog input is 2V, the field is represented as
D0 07
Status
• Tag Type: 0x40
• Length: 2 bytes
• Format:
– Bit 15: 0 indicates SOS button was not pressed. 1 indicates SOS button was pressed.
– Bit 9: 0 indicates ignition off. 1 indicates ignition on.
– Bit 2: 0 indicates device power is disconnected. 1 indicates car battery is connected.
• Example: If SOS button was pressed, the filed is represented as
00 80
9.6. Sample Packets
The following is an example packet with just the IMEI and time stamp fields.
01 3C 00 03 33 35 37 38 30 34 30 34 33 33 39 39 39 31 38 90 62 DA 52 70 FC
The meaning of each byte in the packet is listed in the following table.
Bytes
Meaning
01
Type MAIN / HEAD / ALERT
3C 00
Length
03
IMEI Tag
33 35 37 38 30 34 30 34 33 33 39 39
39 31 38
IMEI Number
