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Modbus RTU/TCP Device ID configuration Error
Hi all,
Both EGX150 and AS-P devices are showing an error message while configuring Modbus device IDs from 250 to 253. Please see the attached photo. Is there any limitations in this devices? Please let me know any solution for this issue.
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From the Architectural Guidelines 3.3.1
The RP-C Modbus network supports up to 10 connected Modbus devices with the following restrictions:
• Maximum of one KNX Modbus gateway (RP-CEXT-KNX)
• Maximum of 250 Modbus registers
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These addresses are illegal, modbus device addresses should be in the range 1-247. See the following extract from the modbus over serial line specification.