Festo MSE6-E2M, Руководство по эксплуатации

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Festo — MSE6-E2M — 2022-08d
Functions
27
–
0 = timer not started, timer status = RESET
–
1 = timer running, timer status = RUN
–
2 = timer expired, timer status = UP
Consumption measurement input data
Data bit B12 has the following values:
–
0 = consumption measurement inactive.
–
1 = consumption measurement active.
5.2.3 Selectable input data function
The input words and output words of all input data and output data are shown in the Motorola format,
MSB-LSB.
The selectable input data function allows a special read access to functional module data. With invalid
address values the error bit is set, Em.4, B15 = 1.
5.2.3.1 Procedure
The extended read access must be performed by the user as follows:
1. Set the desired address in the output word, Am.1.
2. Compare input word Em.4, the current input address, and output word Am.1, set address.
3. Distinguish between the following cases:
–
The address is identical.
è
Read in the valid data from input word Em.5.
–
The addresses are identical, Em.4, B15, ERR = 1.
è The set address is not available. Set the valid address value
–
The addresses are different, Em.4, B14, BUSY = 1.
è
Data processing is not yet complete. Repeat the address comparison.
As long as the set address remains unchanged, a comparison of the addresses and an evaluation of
the error bit is not necessary. The data are updated cyclically.
5.2.3.2 Output word Am.1 input address
The address of the desired input value is transmitted.
Data format of input word 16 bits, right-justified
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
MSB LSB
Abbreviations used
B0 … B14 Address of the requested input value
B15 Output bit with fixed value 0
D0 … D15 16-bit output data field
MSB/LSB Most significant bit/least significant bit
Tab. 12: Data format of output word Am.1
Only the following selectable input address can be selected with the MSE6-E2M.