RKC INSTRUMENT Z-TIO-G, Instruction Manual

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3. COMMUNICATION SETTINGS
IMS01T28-E4
3-7
3.5 Communication Requirements

Processing times during data send/receive
When the host computer is using either the polling or selecting procedure for communication, the following
processing times are required for controller to send data:
- Response wait time after controller sends BCC in polling procedure
- Response wait time after controller sends ACK or NAK in selecting procedure
RKC communication (Polling procedure)
Procedure details Time
Response send time after controller receives ENQ 50 ms max.
Response send time after controller receives ACK 50 ms max.
Response send time after controller receives NAK 50 ms max.
Response send time after controller sends BCC 2 ms max.
RKC communication (Selecting procedure)
Procedure details Time
Response send time after controller receives BCC 50 ms max.
Response wait time after controller sends ACK 2 ms max.
Response wait time after controller sends NAK 2 ms max.
Modbus
Procedure details Time
Read holding registers [03H]
Response send time after the slave receives the query message 50 ms max.
Preset single register [06H]
Response send time after the slave receives the query message 30 ms max.
Diagnostics (loopback test) [08H]
Response send time after the slave receives the query message 30 ms max.
Preset multiple registers [10H]
Response send time after the slave receives the query message 100 ms max.