Festo — MSE6-C2M — 2022-08b
Functions
39
Data bit B13 has the following values:
–
0 = measurement of consumption V1 not active
–
1 = measurement of consumption V1 active
Input data Electrical inputs
Data bit B1 has the following values:
–
0 = sensor supply is switched off (after short-circuit/overload)
–
1 = sensor supply is switched on
Data bit B2 has the following values:
–
0 = signal at electrical input 0 not present (logic 0)
–
1 = signal at electrical input 0 applied (logic 1)
Data bit B3 has the following values:
–
0 = signal at electrical input 1 not present (logic 0)
–
1 = signal at electrical input 1 applied (logic 1)
Input data electrical outputs
Data bit B14 has the following values:
–
0 = no short-circuit/overload at electrical output 0
–
1 = short-circuit/overload at electrical output 0
Data bit B15 has the following values:
–
0 = no short-circuit/overload at electrical output 1
–
1 = short-circuit/overload at electrical output 1
5.2.3
Selectable input data function
The input and output words of all I/O data are shown in the Motorola format, MSB-LSB.
The selectable input data function allows a special read access to functional module data. By setting
an address in the output word Am.1, depending on the address value in the input words Em.5 and
Em.6, 2 16-bit values or one 32-bit value can be read at the same time. In the input word Em.4, the
address of the currently shown input value is displayed. 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 addresses are identical.
è
read in valid data from input words Em.5 and Em.6.
–
The addresses are different, Em.4, B15, ERR = 0.
è
Input data of the new address not yet available. Repeat the address comparison.
–
The addresses are different, Em.4, B15, ERR = 1.
è
The set address is not available. Set the valid address value.
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.
