COTRUST CTH200 Series User Manual

CTH200 Series PLC User Manual
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Receiving information status byte format:
MSB LSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
n
r
E
0
0
t
c
p
n = 1: Receive user order to stop receiving information
r = 1: Input parameter error or no start or end condition result in information receiving end
e = 1: Receive end character
t = 1: Receive information end: timeout
c = 1: Receive information end: over maximum character
p = 1: Receive information end: parity error
Receiving information control byte format:
MSB LSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
en
sc
ec
il
c/m
tmr
bk
0
en: 0 = Forbid receiving information function
1 = Allow receiving information function
Allow/forbid receive information bit each time execute RCV instruction
sc: 0 = Ignore SMB88 or SMB188
1 = Use value of SMB88 or SMB188 to detect start information
ec: 0 = Ignore SMB89 or SMB189
1 = Use value of SMB89 or SMB189 to detect start information
il: 0 = Ignore SMW90 or SMW190
1 = Use value of SMW90 or SMW190 to detect free status
c/m: 0 =Internal character timer
1 = Inform timer
tmr: 0 = Ignore SMW92 or SMW192
1 = Terminate receiving when SMW92 or SMW192 timing timeout.
bk: 0 = Ignore interrupt condition
1 = Use interrupt condition as start of information detection
SMW98: Expansion I/O bus error
SMW98 offer information about expansion I/O bus error. Detailed description is shown in the
following table:
SM address
Function description
SMW98
Each time a checksum error occurs on the extended bus, it increases
by 1. When the system power on or the user program writes zero, it can
be reset.

COTRUST CTH200 Series Specifications

General

Brand	COTRUST
Model	CTH200 Series
Category	Controller
Language	English