ICP DAS USA I-7242D User Manual page 104

5. Then apply the Master's Explicit Request Messages to get the
User-defined Modbus command object instance attribute 0x02.
Service (0x0E)=Get attribute service,
Master (MAC ID =0x0A)
_ Group 2 Message
| _ Destination MAC ID=0x09
| | _ Message ID =4
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ID=10 001001 100. Data= 0A 0E 65 01 02
_ Group 2 Message
| _ Source MAC ID=0x09
| | _ Message ID =3
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ID=10 000011 011. Data= 8A 00 8E
_ Group 2 Message
| _ Destination MAC ID=0x09
| | _ Message ID =4
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ID=10 001001 100. Data=8A
_ Group 2 Message
| _ Source MAC ID=0x09
| | _ Message ID =3
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ID=10 000011 011. Data= 8A 81 17 00
I-7242D DeviceNet/Modbus RTU Gateway User's Manual, July 2006, Version 1.1
_ Frag=0. Transaction ID=0. Destination MAC ID= 0x0A
| _ Service=Get Attribute Request
| | _ Class ID=0x65
| | | _ Instance ID=0x01
| | | | _ Attribute ID=0x02
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_ Frag=1. Transaction ID=0. Destination MAC ID= 0x0A
| _ Fragment Type= Acknowledge,
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01 46 00 00 70
_ Frag=1. Destination MAC ID= 0x09
| _ Fragment Type= Acknowledge,
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| | _Ack State=Success
C0 00
_ Frag=1. Transaction ID=0. Destination MAC ID= 0x0A
| _ Fragment Type= Acknowledge,
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I-7242D user manual
Slave (MAC ID =0x09)
Fragment Count=0
Fragment Count=0
Fragment Count=1
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