Complete bcd reading, Function library – Lenze EVS9332xP User Manual
Page 152
Function library
Function blocks
3.5.12
BCD decade switch (BCD)
3−124
l
EDSVS9332P−EXT DE 2.0
3.5.12.6
Complete BCD reading
1
2
3
+/-
MSB
LSB
BCDx-SIGN
BCDx-SEL1
BCDx-SEL2
BCDx-SEL3
BCDx-DATA1
BCDx-DATA2
BCDx-DATA3
BCDx-DATA4
9300
BCDx-SEL4
Fig. 3−78
Cancel after the 3rd absolute value digit (diode circuit)
Function
Reading can be shortened if BCDs are not required.
l
The FB does not read the following BCDs if the value A
hex
(1010
bin
) for "ABORT" is transmitted
after a BCD has been read. The reading stops with the identification of "ABORT".
l
In the case of the abort via a value digit, the least significant bit (LSB) is to be assigned with
"ABORT", because the reading sequence stops at the least significant bit.
l
In the handshake mode, "CANCEL" should be identified at the beginning of the data
transmission (see also the following chapter).