Mitsubishi Electric MELSEC iQ-R Series User Manual page 100

Item
Number of HSMS
connection attempts
setting
Number of SECS-2
communication
establishment attempts
notification setting
Retry operations during T3 timeouts
The following diagram is an example of retry operations during T3 timeouts
Ex.
When "3" was configured, the 1st normal-send plus 3 retry-sends equals 4 sends.
SECS/GEM communication
software
1.Primary message transmission
(1)
2.1st Retry message transmission
(2)
(1)
3.2nd Retry message transmission
(2)
(1)
4.3rd Retry message transmission
(2)
(1)
5.S9F9 transmission
(1) T3 Timeout Timer
(2) Retry interval
7 BASIC FUNCTIONS
98
7.7 Option Setting
Description
Number of HSMS Configure the register to store the number of times Select.req was sent from a line disconnection state.
connection attempts
Counting method Select the counting method for the number of HSMS connection attempts.
• When "By message" was selected for the counting method, the number of times Select.req was sent
is stored in the HSMS connection attempts notification register. Initialized to 0 by a Selected state
transition.
• When "Accumulate" was selected for the counting method, the number of times Select.req was sent
is stored in the HSMS connection attempts notification register. When the value reaches 65535,
counting stops.
Count clearing Configure the trigger to initialize the value of the number of HSMS connection attempts notification
register to "0" at the arbitrary timing of the programmable controller CPU.
After initialization is run, this trigger is switched OFF by the SECS/GEM communication software.
Use this mainly to clear the accumulated number.
Number of SECS-2 Configure the register to store the number of times S1 and F13 were sent from a communication
communication disconnection state.
establishment attempts
notification
Counting method Select the counting method for the number of SECS-2 communication establishment attempts.
• When "By message" was selected for the counting method, the number of times an S1F13 was sent
from a communication suspended state is stored in the SECS-2 communication establishment
attempt notification register. Initialized to 0 by a communication execution state transition.
• When "Accumulate" was selected for the counting method, the number of times an S1F13 was sent
from a communication suspended state is stored in the SECS-2 communication establishment
attempt notification register. When the value reaches 65535, counting stops.
Note that the number of message retries is not included in this count.
Count clearing Configure the trigger to initialize the value of the number of SECS-2 communication establishment
attempts notification register to "0" at the arbitrary timing of the programmable controller CPU.
After initialization is run, this trigger is switched OFF by the SECS/GEM communication software.
Use this mainly to clear the accumulated number.
Host
Return error occurrence