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COTRUST CTH200 Series User Manual

COTRUST CTH200 Series
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CTH200 Series PLC User Manual
331
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.

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COTRUST CTH200 Series Specifications

General IconGeneral
BrandCOTRUST
ModelCTH200 Series
CategoryController
LanguageEnglish