24-3
PPC Manual Revision 1
Chapter 24: I Relays (Coil)
24.2 Classification of I Relays
I relays are classified as shown below.
Classification of I Relay Map
I relay No.
Area and data
categories
Description
4001 to 4064
Function status
System error
Each bit information is the same as that of
D register.
4065 to 4128 Input error
Each bit information is the same as that of
D register.
4193 to 4256 Operation Mode
Each bit information of 4193 to 4240 is the
same as that of D register.
4321 to 4384 Alarm
Each bit information is the same as that of
D register.
4385 to 4528 Alarm latch
Each bit information of 4385 to 4512 is the
same as that of D register.
4577 to 4704 SP number, PID number
Each bit information is the same as that of
D register.
4705 to 4768 Key
Each bit information is the same as that of
D register.
4769 to 4784 Display
Each bit information is the same as that of
D register.
5025 to 5152
Internal status
Each bit information is the same as that of
D register.
5153 to 5280
Each bit information is the same as that of
D register.
5281 to 5536
Each bit information is the same as that of
D register.
5537 to 5600 Special relay
Each bit information of 5409 to 5540 is the
same as that of D register.
5537 to 5792 Internal relay
Each bit information is the same as that of
D register.
6305 to 6432
Input terminal
status
DI terminal
Each bit information is the same as that of
D register.
CAUTION
• In the area for I relay numbers 4001 to 6560, it is prohibited to write data to I
relays with blank cells in I relay map tables. If you attempt to do so, the PPC5
may not operate properly.
Note
How to Specify I Relay Numbers
When specifying an I relay number for communication, begin the number with the
character “I.”
Example: Set “I4066
”
I relay symbol
• With regards to some register symbols, the loop number and terminal area are
oooo
_Ln
Ln
oooo
_En
En
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