GC5 iSMA-B-W0202, User Manual, Page: 19 / 43

iSMA-B-W0202 Modbus User Manual
version 1.2 Page 19 / 49
Radio AESKEY (40249 – 40256)
Each package transmitted by Radio protocol is encrypted by AES-128 algorithm. It protects the
network against unauthorized access. The encryption uses 128-bits key stored in 8 registers (8 x
16 bits). Each device works in the same group has to have the same encryption key.
Register Device
40249 Radio AESKEY D1-D0
40250 Radio AESKEY D3-D2
40251 Radio AESKEY D5-D4
40252 Radio AESKEY D7-D6
40253 Radio AESKEY D9-D8
40254 Radio AESKEY D11-D10
40255 Radio AESKEY D13-D12
40256 Radio AESKEY D15-D14
Table 14 Radio AESKEY registers
Radio Received Frames Counter (40257)
32-bit register with the number of valid messages received by the module via Radio protocol
from last powered up. The register value is reset after power cycle or after changing transmission
parameters (baud rate, stop bits, parity, etc.).
Radio ERROR Frames Counter (40259)
32-bit register with the number of error messages received by the module via Radio from last
powered up. The value is reset after power cycle or after changing transmission parameters (baud
rate, stop bits, parity, etc.).
Radio Transmitted Frames Counter (40261)
32-bit register with the number of transmitted messages by the module via Radio from last
powered up. The value is reset after power cycle or after changing transmission parameters (baud
rate, stop bits, parity, etc.).