![background image](http://html1.mh-extra.com/html/pixsys/td320/td320_user-manual_1560802039.webp)
39
These words contain the state of EXP1 serial
communication. Each bit of each word
signals a condition of missing communication
(off line) or error for each of the data
transmitted or received using the instructions
EXP_1-256
(for
example,
SM80.4=1
indicates an error in the instruction number
EXP-117(…)
). In the case of a serial line set
to slave protocol, the error condition is
signalled by putting a “1” in all of the bits of
the word SM73.
At startup, all of the words are initialized to 0.
R
SM89 1089
Serial state COM2 1-16
SM90 1090
Serial state COM2 17-32
SM91 1091
Serial state COM2 33-48
SM92 1092
Serial state COM2 49-64
SM93 1093
Serial state COM2 65-80
SM94 1094
Serial state COM2 81-96
SM95 1095
Serial state COM2 97-112
SM96 1096
Serial state COM2 113-128
SM97 1097
Serial state COM2 129-144
SM98 1098
Serial state COM2 145-160
SM99 1099
Serial state COM2 161-176
SM100 1100
Serial state COM2 177-192
SM101 1101
Serial state COM2 193-208
SM102 1102
Serial state COM2 209-224
SM103 1103
Serial state COM2 225-240
SM104 1104
Serial state COM2 241-256
SM105 1105
COM1 time-out number
SM107 1107
EXP1 time-out number
SM109 1109
COM2 time-out number
If the corresponding port Is set to a Master
protocol, this indicates the number of non-
received packets of information during the
communication.
At startup, all counts are initialized to 0.
R
SM106 1106
COM1 number of errors