6. Function blocks
6.1 Manufacturer function blocks
Function block outputs
Description Note
(Bit)
RY Ready
0: Logging is enabled (in the case of ring buf-
fers, RY = 0 always)
1: Logging inactive
Logging can be disabled because:
l n log files have been written
l The memory card is full
l No memory card inserted
l Memory card faulty
BY Busy
1: Logging not possible
Possible causes:
l The card is currently being written to
l The temporary internal buffer is full
E1 Error output
1: Data loss
Possible causes:
l No memory card inserted
l The memory card does not have
enough space for another log file
l Memory card faulty
l Temporary internal buffer overflow
by at least one record
Assigning operands
You can assign the following operands to the function block outputs that are numeric
outputs:
Assigning operands Outputs
Constant x
Markers: MB, MD, MW x
Analog inputs IA x
Analog output QA x
Numeric output from another QV FB x
You can assign the following operands to the function block outputs that are bit outputs:
Assigning operands Bit outputs
Constant 0, constant 1 x
M – Markers x
SN - Output bit via NET (send) x
N - Network marker bit x
nN - NET station n marker x
LE - Output backlight x
Q - Bit output from another FB x
382
easyE4 11/18 MN050009 EN www.eaton.com
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