Configuring an M1 CPU with Concept
350 870 USE 101 10 V.2
Configuring I/O
Overview Once the Ethernet port address parame ters have been set, you may assign
parameters for I/O scanning.
Health Block Specify the starting register of the register block which will contain the health bits
for each of the IO Scanner transactions that you intend to configure.
If you designate a 3x register, the health bits for 64 transactions (maximum) will be
stored in 4 contiguous registers starting at the address you specify.
If you designate a 1x register, the health bits will be stored in 64 contiguous
discrete registers.
A health bit is set only if the associated transaction has completed successfully
within the last health timeout period for that transaction (see below). W hen the PLC
is started, all configured transactions have their respective health bit preset to 1. If
the transaction subsequently fails, then the health bit is cleared after the
programmed health timeout period has expired.
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