8 BUILT-IN ETHERNET FUNCTION INSTRUCTIONS
8.4 SLMP Frame Send Instruction
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*1 If (s1)+0 is set to "0: Without arrival check", receive data is not set. Set 0 in (s1)+0 in the following cases:
When a command that does not return a response message is used
When a response message is not referred to
*2 Give the serial numbers when sending several request messages to the same SLMP-compatible device. Serial numbers to be given are
automatically numbered by the system. For the serial number, refer to the following.
SLMP Reference Manual
■Request frame
+9 Request destination
multidrop station
number
0000H (fixed) 0000H User
+10 Number of resends The device becomes effective when the execution type specified by (s1)+0 is "1: With
arrival check".
■Before instruction execution
Specify the number of resends to be performed if the instruction is not completed
within the monitoring time specified by (s1)+11.
• 0 to 15 (times)
■At completion of instruction
The number of resends performed (result) is stored.
• 0 to 15 (times)
0 to 15 User/
system
+11 Arrival monitoring time Specify the monitoring time until completion of processing. If processing is not
completed within the monitoring time, the request is resent the number of times
specified in (s1)+10.
•0: 10s
• 1 to 32767: 1 to 32767s
0 to 32767 User
+12 Clock setting flag The validity status (valid or invalid) of the data in (s)+13 and later is stored. Note that
the data in (s1)+13 and later is cleared when the instruction is completed
successfully.
• 0: Invalid
• 1: Valid
System
+13 Clock data Upper 8 bits: Month (01H to 12H)
Lower 8 bits: Year (00H to 99H: Lower two digits of the year)
System
+14 Upper 8 bits: Hour (00H to 23H)
Lower 8 bits: Day (01H to 31H)
+15 Upper 8 bits: Second (00H to 59H)
Lower 8 bits: Minute (00H to 59H)
+16 Upper 8 bits: Year (00H to 99H: Upper two digits of the year)
Lower 8 bits: Day of the week (00H (Sun.) to 06H (Sat.))
+17 IP address of error
detected device (third
and fourth octets)
The IP address (third and fourth octets) of the station where an error was detected is
stored.
3, 4: Indicates the octets of the IP address.
System
+18 IP address of error
detected device (first
and second octets)
The IP address (first and second octets) of the station where an error was detected is
stored.
1, 2: Indicates the octets of the IP address.
System
Operand: (s2)
Device Item Description Setting range Set by
+0 Request data length Specify the data length from the monitoring timer to the request data. (In units of
bytes)
1 to 2000 User
+1 Monitoring timer This timer sets the waiting time for the external device that received a request
message to wait for the response after it issued a processing request to the access
destination. (Unit: Increments of 250ms)
• 0: Infinite wait
• 1 to 65535: 1 to 65535 250ms
0 to 65535 User
+2 to + Request data The request data of the SLMP message is stored. User
Operand: (s1)
Device Item Description Setting range Set by
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