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Panasonic FP2 User Manual
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FP2
Serial
Data
Unit
Sample
Programs
8
−
4
8.1
Sample
Programs
BCC
example
The
BCC
is
normally
called
a
horizontal
parity
,
and
the
characters
of
the
sent
character
string
from
the
beginning
to
just
before
the
BCC
form
an
exclusive
OR
(XOR)
in
sequence.
The
resulting
8
−
bit
data
is
converted
to
a
2
−
character
ASCII
code
which
is
the
BCC.
H30
ASCII
H1B
H31
H47
H30
H37
H41
H31
0
ESC
1
G
0
7
A
1
BCC
C
R
H32
H41
Conversion
of
ASCII
code
0001
101
1
(H1B)
001
1
0000
(H30)
0010
101
1
001
1
0001
(H31)
0001
1010
0100
01
1
1
(H47)
0101
1
101
001
1
0000
(H30)
01
10
1
101
001
1
01
1
1
(H37)
0101
1010
0100
0001
(H41)
0001
101
1
001
1
0001
(H31)
0010
1010
(H2A)
2A
Command
Exclusive
OR(XOR)
Exclusive
OR(XOR)
Exclusive
OR(XOR)
Exclusive
OR(XOR)
Exclusive
OR(XOR)
Exclusive
OR(XOR)
Exclusive
OR(XOR)
89
91
Table of Contents
Table of Contents
3
Chapter 1 Functions of Serial Data Unit
17
Default Chapter
17
Features and Parts Number of Serial Data Unit
17
Features
17
Part Number of Unit
17
Function of Serial Data Unit
20
Restrictions on Units Combination
21
Restrictions on Current Consumption
21
Restrictions on Unit Installation Position
21
Chapter 2 Parts and Functions
23
Parts and Functions
23
COM.1 and COM.2 Ports (9 Pins)
23
Name of Parts
23
Operation Status Display Leds
23
Transmission Format Setting Switch
23
Chapter 3 Confirming the Unit Settings and Design
29
Confirming the I/O Contacts and Slot Number
29
Allocation of I/O Contacts
29
Signals of RS232C Connector
31
3.2 Setting the Transmission Speed and Transmission Format
35
Confirming the I/O Contacts and Slot Number
38
Allocation of I/O Contacts
38
The Role of Input/Output Contacts
38
Confirming the I/O Allocation and Slot Number
39
Confirming the I/O Number Allocations
39
Confirming Slot Number
40
Chapter 4 Communication with External Devices
43
Setting the Transmission Speed and Transmission Format
29
Transmission Format Settings Set Using Switches
29
Transmission Format Settings Using the Shared Memory
29
Signals of RS232C Connector
29
Overview of Communication with External Devices
45
Receiving Data from External Device
47
Programming When Data Is Sent
49
How Timings and Flags (Contacts) Work
49
Programming When Data Is Received
52
How Timings and Flags (Contacts) Work
52
Sample Program
56
Sample Program <FP Series PLC (MEWNETCOL−COM)
56
Data Sent and Received with the Serial Data Unit
62
Chapter 5 Precautions Regarding Serial Data Unit Operation and Programs
65
Default Chapter
67
Precautions Regarding Basic Operation of the Unit
67
Shared Memory Values When the Power Supply Is off
67
Precautions Concerning Communication
68
Precautions When a Start Code Is Valid
68
End Codes for Communication
69
Operation if a Communication Error Occurs 5
69
Precautions Concerning a Software Reset
70
Chapter 6 Operation if an Error Occurs
73
When the Serial Data Unit ERROR LED Lights
74
What to Do if an Error Occurs
75
If Data Cannot be Sent or Received with the Serial Data Unit
76
Chapter 7 Specifications
79
Tables of Performance Specifications
79
Table of Shared Memory Areas
81
Table of I/O Contacts
82
Transmission Format
84
Chapter 8 Sample Programs
87
Adding a BCC (Block Check Code)
89
An Overview of the BCC
89
BCC Automatic Addition Sent Program
91
Received Program with BCC Check
93
Time out and Retry
95
An Overview of the Time out and Retry Functions
95
Time out and Retry Program
95
Table of ASCII Codes
97
Record of Changes
99
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Panasonic FP2 Specifications
General
Brand
Panasonic
Model
FP2
Category
Controller
Language
English
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