may be beneficial to know if a Server/Slave device is down. By using this Network
Bitmap Status you can expose the connection statuses of individual devices.
b.
0x00000002 shows that only device 2 is connected
c.
0x00000003 shows that only devices 1 and 2 are connected
d.
0x00000004 shows that only device 3 is connected
5.
Status_XY
a.
There are two Statuses provided, one for each protocol. This gives access to the overall
status of that Protocol. Each Bit has its own meaning as follows:
Common Status: 0x000000FF (bit 0-7)1
st
byte
Hex: Bit Position: Decimal: Explanation:
0x00 0
0
if we are a Slave/Server
0x01 0
1
if we are a Master/Client
0x02 1
2
connected (0 not connected)
0x04 2
4
first time scan
0x08 3
8
idle (usually added to connected)
0x10 4 16
running (usually added to connected)
0x20 5
32
bit not used
0x40 6 64
recoverable fault
0x80 7 128
nonrecoverable fault
For this example the ETC Status is mapped to a PLC tag called PLC_Status
Example:
ETC Status is 0x00000013 (19 decimal), here is the break down
Hex
Bit Decimal
Explanation
0x01 0(on) 1
if we are a Master/Client
0x02 1(on) 2
connected (0 not connected)
0x10 4(on) 16
running (usually added to connected)
Total: 0x13
19
External Faults:
0x0000FF00 (bit 8-15)2
nd
byte
Hex: Bit Position: Decimal: Explanation:
0x00 8
0
local control
0x01 8
256
remotely idle
0x02 9
512
remotely faulted
0x04 10
1,024
idle due to dependency
0x08 11
2,048
faulted due to dependency
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