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12
2-5-2 Address notation in NS-Designer
Address notation when accessed using word (address for word
communications)
<port>
:
<Communications
unit No..>
#
<Variable
category>
<Channel>
<Address>
Address when accessed using bit (address for bit communications)
<port>
:
<communications
unit No.>
#
<Variable
category>
<channel>
<address>
.
<bit
position>
Item
Value range & definition
SerialA
Connected to serial port A
<Port>
SerialB
Connected to serial port B
<communications
unit No. >
00 to 31
<Variable type>
C0 to D7
<Channel>
00 to 03
ch1 to ch4
<Address>
variable
category
Address range
C0 to C3
00 to 3F
C4 to CB
00 to 7F
CC to D7
00 to 3F
<Pit position>
00 to 31
Example:
SerialA:24#C4001C
PortA:Unit No.24/area category C4/ch1/address 1CH
SerialB:17#D1036E.
3
PortB:Unit No.17/area D1/ch4/address6EH/bit3
2-5-3 Use of double word numbers
Variable area in the Temperature Controller is composed of values in double-word
format(32bit length). Negative values are expressed as the two’s complement.
Therefore, select DINT(signed 2 words) as storage type for the variable, which the
decimal value will be stored. Select UDINT(unsigned 2 words) for the variable, which
the hexadecimal value will be stored.
2-5-4 Communications writing enabled/disabled
Before you can write to variable area in temperature controller, you need to go to the
adjustment level and set
Communications writing
on
Enabled: ON
. (Default
setting is
Disabled: OFF
).
For monitoring only, so when no writing is carried out, the setting can be either
Disabled: OFF
or
Enabled: ON
.