Yaskawa Remote Serial Communication Controller LAN Node PCB for use with Microtrac DSD LAN - Manual (Page 9)

(021H)
This message is sent to the drive from
the Remote node to halt updates of the indicated
display from the drive. After this message is
sent, nothing will be sent to that channel until
another Display Node Request message is sent.
[ MSG TYPE = 021H | RDU # ]
0 1
The RDU # indicates which Remote node
channel is to stop receiving information.
Display Message ASCII Response
(022H)
Ths drive sends this message only once,
after receiving the Display Node Request, to
provide the ASCII string used as a legend for the
display and the initial numeric display value.
When the Remote node receives this message,
it knows that the data is to be displayed only, and
will not allow any modification of the value.
Subsequently, the drive will send only the
numeric value to the Remote node, with the use
of the Display Value Response message, when
the data changes and at regular 4 second
intervals.
[ MSG TYPE = 022H | RDU # | BOTTOM LINE
ASCII
0 1 2-17
TEXT | TOP LINE ASCII TEXT | VALUE ]
18-33 34-37
The RDU # indicates which Remote node
channel is to receive this information.
The BOTTOM LINE ASCII TEXT is the
legend for the data; the first character of the
string is at offset 2.
The TOP LINE ASCII TEXT contains the
drive name and the units for the data; the first
character of the string is at offset 18.
The VALUE contains the initial value of
the data in the IEEE single precision floating
point format; the msb is at offset 34.
Display Variable ASCII Response
(023H)
This mesage is sent only once, after the
Display Node Request, to provide the ASCII
string used as a legend for the display and the
initial numeric value. When the Remote node
receives this message, it knows that the data
may be modified, and will allow modification of
the value. Subsequently, the drive will send only
the numeric value to the Remote node, with use
of the Dispaly Value Response message, when
the data changes and at regular 4 second
intervals.
{ MSG TYPE = 023H | RDU # | BOTTOM LINE
ASCII
0 1 2-17
TEXT | TOP LINE ASCII TEXT | UPPER
LIMIT |
18-33 34-37
LOWER LIMIT | VALUE ]
38-41 42-45
The RDU # indicates which Remote node
channel is to receive this information.
The BOTTOM LINE ASCII TEXT is the
legend for the data; the first character of the
string is at offset 2.
The TOP LINE ASCII TEXT contains the
drive name and the units for the data; the first
character of the string is at offset 18.
If the value is modified, then limit
checking must be performed by the Remote
node. The modified value must be within the
range of the UPPER LIMIT and the LOWER
LIMIT. The modified value may equal the limits,
but may not exceed them. The UPPER LIMIT
value is in IEEE single precision floating point
format; the msb is at offset 34. The LOWER
LIMIT value is in IEEE precision floating point
format; the msb is at offset 38.
The VALUE contains the initial value of
the data in IEEE single precision floating point
format; the msb is at offset 42.
9
RD 790-30