CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 345

• Manufacturer Part Number: CJ1W-EIP21
• Description: Ethernet I/P Module
• Manufacturer: Omron

Specifications of CJ1W-EIP21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

11-7-3 Initializing File Memory
11-7-4 I/O Memory Data Format
Using File Memory
■ IOM Format
■
TXT Format
The IOM format is a data format used for binary data specified by the ladder
instructions, READ DATA FILE (FREAD(700)) and WRITE DATA FILE
(FWRIT(701)), in the CPU Unit.
If five words of data from the I/O memory (1234 hexadecimal, 5678 hexadeci-
mal, 9ABC hexadecimal, etc.) is contained in an attached file in IOM format,
the data will be stored in the attached file as shown in the following diagram.
Example: Binary data format with a delimiter after every 10 fields.
The TXT format is a data format (using tab delimiters) specified by the ladder
instructions, READ DATA FILE (FREAD(700)) and WRITE DATA FILE
(FWRIT(701)), in the CPU Unit. The format is configured according to the
specified FREAD(700) and FWRIT(701) parameters, as follows:
If data from the I/O memory (1234 hexadecimal, 5678 hexadecimal, 9ABC
hexadecimal, etc.) is contained in an attached file in TXT format, the data will
be converted into ASCII format in words or double-words. The words are
delimited by inserting tabs ([HT]: 09), and carriage returns (CR) after specified
fields ([CR][LF]: 0D0A).
+10
Memory
Cards
EM File Mem-
ory
• Words without delimiters
• Double words without delimiters
• Words delimited by tabs.
• Double words delimited by tabs
I/O memory
+0
(Reserved by the system.)
Memory
.IOM file contents
XX XX
9ABC DEF0
1234
+0
48 bytes
Data format
5678
+1
1. Insert the Memory Card into the CPU Unit.
2. Initialize the Memory Card from a Programming Device
1. Specify in the PLC Setup the first bank to convert to file memory.
2. Initialize EM File Memory from the CX-Programmer.
XX 12 34 56 78 9A BC DE F0 12 34
(Programming Consoles included).
9ABC DEF0
1234
+2
5678 9ABC DEF0
+3
1234
+4
• No CRs
• CR after every 10 fields.
• CR after each field.
• CR after every 2 fields.
• CR after every 4 fields.
• CR after every 5 fields.
• CR after every 16 fields.
Initialization method
Use of CRs and CR position
5678
+5
9ABC DEF0
1234
+6
5678 9ABC
+7
1234
+8
Section 11-7
5678
DEF0
+9
317