User manual

IEC61131 User and Reference Manual
April 22, 2008
400
Read Coil Status
The Read Coil Status function reads data from coil registers in the remote device. Data can
be written into the digital input or the digital output sections of the I/O database.
Any number of registers may be read up to the maximum number supported by the slave
device or the maximum number above, whichever is less. The read may start at any
address, provided the entire block is within the valid register range. Each register is one bit.