User Manual

72 MODBUS Programmable I/O NA-9379 FnIO S-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
A.4 MODBUS Special Register Map
The special register map can be accessed by function code 3, 4, 6 and 16. Also the special register map must be
accessed by read/write of every each address (one address).
A.4.1. Adapter Register Mapping
Address
IEC Address
Contents
0x0000~0x027F
%IW0~%IW639
640 word Input and Internal memory (Area is write-protected)
0x0280~0x07FF
-
Illegal data address
0x0800~0x0A7F
%QW0~%QW639
640 word Output and Internal memory (Area is write-enabled)
0x0A80~0x0FFF
-
Illegal data address
0x1000~0x1FFF
-
Special Function Register (PIO Information)
0x2000~0x2FFF
-
Special Function Register (Slot Information)
0x4000~0x427F
%MW0~%MW639
640 word Internal memory (Area is write-enabled)
A.4.2. Adapter Identification Special Register (0x1000, 4096)
Address
Access
Type, Size
Description
0x1000(4096)
Read
1 word
Vendor ID = 0x02E5 (741), Crevis. Co., Ltd.
0x1001(4097)
Read
1 word
Device type = 0x000C, Network Adapter
0x1002(4098)
Read
1 word
Product code. 0x2000
0x1003(4099)
Read
1 word
Firmware revision, if 0x0101, revision 1.01
0x1004(4100)
Read
2 words
Product unique serial number
0x1005(4101)
Read
String up to
34bytes
Product name string
First 1word is length of valid character string
Example) response as following
“00 12 4E 41 39 33 37 39 5F 50 49 4F 5F 41 64 61 70 74 65 72 00 00 00 00 00 00 00 00 00
00 00 00 00 00”
Valid character size = 0x0017 =29 characters
“NA-9379_PIO_Adapter”
0x1006(4102)
Read
1 word
Sum check of EEPROM
0x1010(4112)
Read
2 words
Firmware release date
0x1011(4113)
Read
2 words
Product manufacturing inspection date
0x1012(4114)
Read
String up
to 34bytes
Vendor name string
First 1word is length of valid character string.
0x101E(4126)
Read
15words
7words
Composite Id of following address
0x1050(4176),0x1051(4177),0x1052(4178),0x1053(4179),
0x1000(4096),0x1001(4097),0x1002(4098),0x1003(4099),0x1004(4100)
* String Type consists of valid string length (first 1word) and array of characters.