15 NETWORK COMMON INSTRUCTIONS
15.1 Link Dedicated Instructions
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15
■Request data
*1 Writing clock data using the REQ instruction cannot change the upper two digits of the year. If the year needs to be changed including
the upper two digits as well, use the engineering tool to set the clock data.
■Response data
• For details on the clock function, refer to the user's manual for the CPU module used.
• Clock data cannot be read or written when System Protect is applied to the CPU module of the target
station.
• When clock data is read, a continuous area for six words is required for the response data storage device
(d1).
Operand: (s2)
Device Item Description Reading
clock
data
Writing
clock
data
Set by
+0 Request type • 0001H: Reading clock data
• 0011H: Writing clock data (with a station number specified in (s1)+5)
• 0031H: Writing clock data (with All Station or a group specified in (s1)+5)
User
+1 Subrequest type • 0002H: Reading clock data
• 0001H: Writing clock data
User
+2 Change pattern ■Change pattern (bits 0 to 6)
Specify which item from the upper byte in (s2)+2 to (s2)+5 should be written.
• 0: Not changed
• 1: Changed
■Changed year (bits 8 to 15)
Specify the year (two lower digits) in BCD code.
*1
b6: Day of week, b5: Second, b4: Minute, b3: Hour, b2: Day, b1: Month, b0:
Year
User
+3 Changed clock data Upper 8 bits: Day (01H to 31H)
Lower 8 bits: Month (01H to 12H)
User
+4 Upper 8 bits: Minute (00H to 59H)
Lower 8 bits: Hour (00H to 23H)
User
+5 Upper 8 bits: Day of week (00H (Sunday) to 06H (Saturday))
Lower 8 bits: Second (00H to 59H)
User
Operand: (d1)
Device Item Description Reading
clock
data
Writing
clock
data
Set by
+0 Request type • 0081H: Reading clock data
• 0091H: Writing clock data
System
+1 Subrequest type • 0002H: Reading clock data
• 0001H: Writing clock data
System
+2 Clock data that has
been read
Upper 8 bits: Month (01H to 12H)
Lower 8 bits: Lower 2 digits of year (00H to 99H)
System
+3 Upper 8 bits: Hour (00H to 23H)
Lower 8 bits: Day (01H to 31H)
System
+4 Upper 8 bits: Second (00H to 59H)
Lower 8 bits: Minute (00H to 59H)
System
+5 Upper 8 bits: (00H)
Lower 8 bits: Day of the week (00H (Sun.) to 06H (Sat.))
System
b15 b7 b0b1b2b3b4b5b6b8
…
0Year (00H to 99H)