Sharp JW-21MN - Manual (Page 47)

10-8
[9] Reading time
Read out time (hour, minute, second) of clock. However, when JW-21CU or JW-31CUH/H1 is used as
PC, these PC do not have clock function and the read out data will be unsettled.
[Write mode assignment]: None
[Communication format]
Command
Response
[Example] Reading a time of 8 : 30 : 30 AM. (The data in cells are in hexadecimal notation)
Command
Response
[10] Setting time
Set time (hour, minute, second) of clock. However, when JW-21CU or JW-31CUH/H1 is used as PC,
these PC do not have clock function and date cannot be set.
[Write mode assignment]: 1 or 2
[Communication format]
Command
Response
[Example] When the time is 13 : 30 : 00. (The data in cells are in hexadecimal notation)
Command
Response
"+" "C" "L" "A" CMD SUB ATTR
"+" ACK "C" "L "A" CMD SUB ATTR H M S
2B 00 43 4C 41 45 A3 00 08 30 30
ACK CMD SUB 8: 30: 30AM
2B 43 4C 41 45 B3 00 13 30 00 00
"+" "C" "L" "A" CMD SUB ATTR 13 30 00 At operation
2B 00 43 4C 41 45 B3 00
ACK CMD SUB
Symbol Data Details
CMD 45
(H)
Function code
SUB B3
(H)
Sub code
H, M, S Same as the "Reading out time" above.
CTRL
00
(H)
Start operation of the clock
01 (H) Stop operation of the clock
02 (H) Reset digits lower than the second
08 (H)
Correct 30 seconds (Round off 0 to
29 sec., and round up 30 to 59 sec.)
2B 43 4C 41 45 A3 00
"+" "C" "L" "A" CMD SUB ATTR
"+" "C" "L" "A" CMD SUB ATTR H M S CTRL
"+" ACK "C" "L" "A" CMD SUB ATTR
(Symbols other than the
left: See page 10-3.)
Symbol Data Details
CMD 45 (H) Function code
SUB A3 (H) Sub code
H 00 to 23
(H)
00 to 23 o'clock
M 00 to 59
(H)
00 to 59 minutes
S 00 to 59
(H)
00 to 59 seconds