ZFM-70 SeriesFingerprint Identification Module
User Manual
www.zhiantec.com
Hangzhou Zhian Technologies Co.,Ltd
30
Instruction code: 54H
Command (or instruction) package format:
Header
Module
address
Package
identifier
Package
length
Instruction
code
wait
time
for
press
times
for
press
store
number
Repeat
flag
Checksum
2 bytes
4 bytes
1 bytes
2 bytes
1 bytes
1 bytes
1 bytes
2 bytes
1byte
2 bytes
0xEF01
XXXX
0x01
0x0008
0x54
XX
2/3
xxxx
0/1
xxxx
1.
Wait time for press finger is the max wait time for waiting . if no finger press inside the wait time, it will
return no finger. The value range from 1 to 255, The higher the value, the more time, for ZFM-70 serials Usually
use 54
(
0x36
)
The corresponding time is 3.5seconds, the other time is below:
Value
Wait time(seconds)
Value
Wait time(seconds)
31(0x1f)
2
62(0x3e)
4
38(0x26)
2.5
69(0x45)
4.5
46(0x2e)
3
77(0x4d)
5
54(0x36)
3.5
85(0x55)
5.5
2.
Times for press means the times to press finger to enroll one template, the value is 2 or 3, 2means press
two times,3 means press three times.
3.
When the press time is 2, the command will capture two fingerprint to merge a template, and the first
capture, the module will send Confirmation code0x56(PS_AUTOLOGIN_OK1), then you can continue to capture
fingerprint second
When the press time is 3 ,the command will capture three fingerprint to merge a template, and the first
capture, the module will send Confirmation code 0x56(PS_AUTOLOGIN_OK1),the second capture, the module
will send Confirmation code 0x57(PS_AUTOLOGIN_OK2). then you can continue to capture fingerprint third.
4.
Repeat flag means whether still enroll if the template exists. The value 0 means cannot repeat, if the
template exists, it will not enroll. The value 1 means can repeat, even if the template exists, it can enroll also.
Acknowledge package format:
2 bytes
4 bytes
1 bytes
2 bytes
1 bytes
2 bytes
Header
Module address
Package
identifier
Package length
Confirmation
code
Checksum
0xEF01
XXXX
0x07
0x0003
XX
XX
Note: Confirmation code=00H: success
Confirmation code=01H, fail to receive package
Confirmation code=02H, no finger on sensor
Confirmation code =06H,fail to generate character file due to the over-disorderly fingerprint image;
Confirmation code =07H,fail to generate character file due to lackness of character point or over-smallness of
fingerprint image
Confirmation code =0aH fail to combine the character files;
Confirmation code =0bH, addressing Page ID is beyond the finger library;
Confirmation code =56H, The first acquisition was successful