Model S4000CH
46
Exception: Returns an Exception Code 01 (Illegal Function) if an illegal write is requested.
Byte
Function
Bit Position
Access
High
Not Used
15 MSB
Read
Not
Used
14
Read
Not
Used
13
Read
Not
Used
12
Read
Not
Used
11
Read
Not
Used
10
Read
Latching/Non-
Latching
9 R/W
Energized/De-
Energized
8 R/W
Low Set
point
(7-0) R/W
6.8.14 Com1 Address (0Fh)
A read command returns the current address for Com1. A write command changes the
address to the requested value. Valid addresses are 1-247 decimal.
Factory default is 1.
Exception: If the address is not in range, an illegal data value (03) is returned.
6.8.15 Com1 Baud Rate (10h)
A read command returns the current baud rate for Com1. A write command changes the
baud rate to the requested values. Valid settings are shown in the table below.
Factory
default is 19,200.
Baud Rate
Value
Val(Hex)
Access
2400 24 18
Read/Write
4800
48
30
Read/Write
9600 96 60
Read/Write
19,200
192
C0
Read/Write
Table 11: Com1 Baud Rate
Exception: If the baud rate is not in range, an illegal data value (03) is returned.
6.8.16 Com1 Data Format (11h)
A read command returns the current data format for Com1. A write command changes the
data format to the requested values. Valid settings are shown in the table below.
Default
format is 8-N-1.
Data
Parity
Stop
Format
Data(Bits 8-9)
Access
8 None 1
8-N-1 0
Read/Write
8
Even
1
8-E-1
1
Read/Write
8 Odd 1
8-O-1 2
Read/Write
8
None
2
8-N-2
3
Read/Write
Table 12: Com1 Data Format
Exception: If the data format is not in range, an illegal data value (03) is returned.