* Function code
: A number represent to a function of Modbus protocol as in Table 3.
More specifically, we extract the function codes
per 1 minute to form the function code
sequences, and by using the feature calculation and construction algorithm we win a total of 75 function control samples.
The document analyzer is used for the conversion of each word in the cover text into a binary summation of its constituent characters, whereas the classifier passes through the document, sampling similar bit positions in adjacent words of each set and producing a one-bit result of the XOR operation, an ([F.sub.k]) function code
for each bit position operation between the two words.
As shown below, the code performs a query to the sensor node 0 of the cluster 0, with the function code
(a.funcao) set to 0, which is a read operation (READ) of the sensor values indicated by the header sensor.
Sending content Byte count Transmitted information Start frame 4 Pause time Address code 1 XX Function code
1 XX Date area N DATA1 ...
Attack type Attacks Application scan Modbus version scanner PLC Modbus mode identification PLC IO scan status Report slave ID Function code
scan Improper command execution Force listen only mode Read/write request to a PLC Slave device busy exception code delay Acknowledge exception code delay Broadcast request from a client
According to Lemma 6, two different ordinal number sequences corresponding to two permutations must be different, and according to Lemma 7, coding function Code
maps each ordinal number sequence to a distinct coding.
Also, a C-language interface enables users to load their own device model codes or function codes
into the APLAC Simulator.
The new system features two functions that automatically rotate keys to different locations inside the cabinet each time a key is returned and a customization function that allows customers to rename the function codes
to better suit their needs.
The function codes
are given in a hybrid precision form, with the vast bulk of the code independent of the precision.
UPGRADABLE A universal remote control feature that enables the remote to have additional product and function codes
added to its memory as new equipment comes onto the market.
The configuration is a combination of function codes
and Batch 90 language.