ICP DAS USA MDC-714i User Manual page 29

NOTE
 The maximum number of all the polling definitions is 250.
 The MDC-700 provides 9600 internal Modbus registers each table (DI/DO/AI/AO) to hold data
collected from the RTU slave devices.
 The Modbus ID for the MDC-700 is defined in Modbus Connection section.
 By setting different types for a polling definition to retain register space mapped for specific
devices, or to release those space mapped but reserve the definition, the main program on the
Modbus master device can be applied in different applications where users would like to change
or stop some devices without modification or with minimum level of modification.
 The TimeoutEventProcess and the PresetValue parameters are only available to firmware
version 1.08 and later. If a config.csv file for firmware version 1.06 or prior is imported to a
MDC-700 with firmware version 1.08 or later, the TimeoutEventProcess parameter is auto set to
2, and the PresetValue parameter is set to 0.
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