4. SETTING
IMR01J08-E1
11
4.3 Communication Requirements
Processing times during data send/receive
The SA100L requires the following processing times during data send/receive.
Whether the host computer is using either the polling or selecting procedure for communication, the
following processing times are required for SA100L to send data:
-Response wait time after SA100L sends BCC in polling procedure
-Response wait time after SA100L sends ACK or NAK in selecting procedure
RKC communication (Polling procedure)
Procedure details
Time (ms)
MIN
TYP
MAX
Response send time after SA100L receives ENQ
1.6
4.0
12
Response send time after SA100L receives ACK
1.6
−
10
Response send time after SA100L receives NAK
1.6
−
10
Response send time after SA100L sends BCC
−
−
1.0
RKC communication (Selecting procedure)
Procedure details
Time (ms)
MIN
TYP
MAX
Response send time after SA100L receives BCC
1.6
3.0
10
Response wait time after SA100L sends ACK
−
−
1.0
Response wait time after SA100L sends NAK
−
−
1.0
Modbus
Procedure details
Time
Read holding registers [03H]
Response transmission time after the slave receives the query
message
13 ms max.
Preset single register [06H]
Response transmission time after the slave receives the query
message
6 ms max.
Diagnostics (loopback test) [08H]
Response transmission time after the slave receives the query
message
6 ms max.
Response send time is time at having set interval time in 0 ms.
