Chapter 2 Devices 20. Flags and registers concerning data exchange Flags for data exchange through COM1 connections 2_ Flags for data exchange through COM2 connections Registers for data exchange through COM1 and COM2 connections The error codes 1–7 are the standard response error codes of the Modbus protocol. Error code 9 means timeout. Flags for data exchange through Funciton Card 1 and Funciton Card 2 (available for firmware V1.06.00 or later) 2-121 SM Type Function SM750 R/W Data exchange through COM1 enabled by ISPSoft. SM752–SM783 R/W Connection 1–32 through COM1 for data exchange started. SM784–SM815 R Data received through COM 1 connection 1–32 for data exchange.
SM816–SM847 R Error in the COM1 connection 1–32 for data exchange. SM Type Function SM862 R/W Data exchange through COM2 enabled by ISPSoft. SM864–SM895 R/W Connection 1–32 through COM2 for data exchange started. SM896–SM927 R Data received through COM2 connection 1–32 for data exchange.
SM928–SM959 R Error in the COM2 connection 1–32 for data exchange SR Function SR1335 Actual cycle time of connection 1–32 for data exchange through COM1 SR1336 Number of the connection that is currently performing a cyclical data exchange through COM1 SR1340–SR1371 Error code for data exchange through the COM1 connection 1–32 SR1375 Actual cycle time of connection 1–32 for data exchange through COM2 SR1376 Number of connection that is currently performing a cyclical data exchange through COM2 SR1380–SR1411 Error code for data exchange through the COM2 connection 1–32 SM Type Function Card 1 SM1710 R/W Data exchange through Function Card 1 enabled by ISPSoft SM1712 ~ SM1743 R/W Connection 1-32 for data exchange through Function Card 1 started SM1744 ~ SM1775 R Successful data exchange connection 1-32 through Function Card 1 SM1776 ~ SM1807 R Error in data exchange connection 1-32 through Function Card 1 SM Type Function Card 2 SM1822 R/W Data exchange through Function Card 1 enabled by ISPSoft SM1824 ~ SM1855 R/W Connection 1-32 for data exchange through Function Card 1 started SM1856 ~ SM1887 R Successful data exchange connection 1-32 through Function Card 1 SM1888 ~ SM1919 R Error in data exchange connection 1-32 through Function Card 1