(0) SETUP – setup in progress
(1) NW INIT – network-related initialisation
tasks are being performed
(2) WAIT PROCESS – the module will stay in
this state until a Class 1 connection is
opened
(3) IDLE – Class 1 connection idle
(4) PROCESS ACTIVE – Error free Class 1
connection
(5) ERROR – Class 1 connection error, or
duplicate IP address detected
(6) RESERVED
(7) EXCEPTION – major fault
(8) NONE – option not fitted