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I have previously worked on microcontrollers and Modbus RTU serial communication for the following 20 types of PLCs. I am now sharing the correspondence table of the input, output, and register components of these 20 PLCs with Modbus addresses.
Mitsubishi FX3G-40MR/ES-A,Siemens S7-200 CPU226 AC/DC/RLY,Omron CP1H-X40DR-A,Panasonic AFPX-C40R,Delta DVP-12SA2,Xinjie XC5-48,Yonghong FBs-40MC,Chande XBC-DR40S,Inovance H2u-2416MT-XP,Invensys IVC2H-1616MAT6,Keyence KV-N40AR,Schneider Electric TM218LDAE40DRPHN,Haiwei H40S2R series,Weikong LX3V1212MT series,Holley LE5109,Taian AP-340BR-A,Rockwell 1766-L32BWA,Hexin CTH200 series CPU H226L,Fuji SPE NW0P40R-31,Beckhoff K508-40AR
Mitsubishi
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Siemens
I components support Modbus function code 02; Q components support Modbus function codes 01, 05, and 15; V components support Modbus function codes 03, 06, and 16.
Omron
CIO0 components support Modbus function code 02; CIO100 components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Panasonic
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; DT components support Modbus function codes 03, 06, and 16.
Delta
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Xinjie
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Yonghong
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Chande
P0 components support Modbus function code 02; P40 components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Inovance
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Invensys
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Keyence
R0 components support Modbus function code 02; R500 components support Modbus function codes 01, 05, and 15; DM components support Modbus function codes 03, 06, and 16.
Schneider Electric
After updating the firmware, supports function codes 01, 02, and 15.
I components support Modbus function code 02; Q components support Modbus function codes 01 and 15; M components support Modbus function codes 03, 06, and 16.
Haiwei
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Weikong
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Holley
I components support Modbus function code 02;
Q components support Modbus function codes 01, 05, and 15; M components support Modbus function codes 03, 06, and 16.
Taian
X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and 15; D components support Modbus function codes 03, 06, and 16.
Rockwell
I components support Modbus function code 02;
Q components support Modbus function codes 01, 05, and 15; N components support Modbus function codes 03, 06, and 16.
Hexin
I components support Modbus function code 02; Q components support Modbus function codes 01, 05, and 15; V components support Modbus function codes 03, 06, and 16.
Fuji
(No protocol programming implementation)
X components support Modbus function code 02; Y components support Modbus function codes 01 and 15; D components support Modbus function codes 03 and 16.
Beckhoff
I components support Modbus function code 02;
Q components support Modbus function codes 01, 05, and 15; V components support Modbus function codes 03, 06, and 16.
Microcontroller
DI components support Modbus function code 02;
DO components support Modbus function codes 01, 05, and 15;
AI components support Modbus function code 04;
AO components support Modbus function codes 03, 06, and 16.
Source: Industrial Control Forum, Guan Pu
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