Lika SMAX-AI1-PRG-L2, Руководство пользователя

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SMAX MODBUS®
Status word
It shows the value expressed in decimal notation (256 in the Figure) that can be
read currently next to the
Status word [0006 hex]
register, refer to page 72. If
there are active alarms, the
Alarm
message appears on the right while the
position value above disappears. A further message shows whether the scaling
function and the counting direction function are enabled.
Alarm register
It shows the value expressed in decimal notation (8 in the Figure) that can be
read currently next to the
Alarms register [0000 hex] register, refer to page
69. If there are active alarms, the specific alarm message appears on the right
(e.g.
Align error
in the Figure) while the position value above disappears.
Machine data not valid
It shows the value expressed in decimal notation (0 in the Figure) that can be
read currently next to the
Wrong parameters list [0003 hex]
register, refer to
page 71. If a wrong parameter has been set, it is stated on the right while the
position value above disappears.
Status word and Alarm register registers
activate too. The input field of the wrong parameter in the HOLDING
REGISTERS
group box of the interface is highlighted in red.
5.3.3 Reading the exception responses – Exception error
In the
EXCEPTION ERROR
group box just beneath the
INPUT REGISTERS
group
box the exception response messages that the Server transmits to the Client
when an error occurs are shown.
Exception error
It shows the exception response messages that the Server transmits to the
Client when an error occurs because the Server is not able to handle the request
from the Client (for example, if you confirm values that are not allowed or
because of a request to read a non-existent output or register). For more
information on the exception responses and the MODBUS exception codes
please refer to the “7.2 Exception response and exception codes“ section on
page 74.
MAN SMAX MB E 1.2 Quick reference 33 of 84