ALTUS Nexto Series User Manual

5. CONFIGURATION
Direct Repre-
sentation
Variable
Diagnostic Variable
T_DIAG_MODBUS
_RTU_MASTER_1.*
Size Description
%QX(n+2).7
tCommand.
bDiag_23_reserved
BIT Reserved
%QB(n+3)
byDiag_3_reserved
BYTE Reserved
Communication Statistics:
%QW(n+4)
tStat.
wTXRequests
WORD
Counter of request transmitted by the mas-
ter (0 to 65535).
%QW(n+6)
tStat.
wRXNormalResponses
WORD
Counter of normal responses received by
the master (0 to 65535).
%QW(n+8)
tStat.
wRXExceptionResponses
WORD
Counter of responses with exception codes
received by the master (0 to 65535).
%QW(n+10)
tStat.
wRXIllegalResponses
WORD
Counter of illegal responses received by
master – invalid syntax, not enough re-
ceived bytes, invalid CRC – (0 to 65535).
%QW(n+12)
tStat.
wRXOverrunErrors
WORD
Counter of overrun errors during reception
- UART FIFO or RX line – (0 to 65535).
%QW(n+14)
tStat.
wRXIncompleteFrames
WORD
Counter of answers with construction er-
rors, parity or failure during reception (0 to
65535).
%QW(n+16)
tStat.
wCTSTimeOutErrors
WORD
Counter of CTS time-out error, using RT-
S/CTS handshake, during transmission (0
to 65535).
%QW(n+18)
tStat.
wDiag_18_Reserved
WORD Reserved
Table 85: MODBUS RTU Master Diagnostics
Note:
Counters: All MODBUS RTU Master diagnostics counters return to zero when the limit value 65535 is exceeded.
5.5.5.1.2. Devices Configuration – Symbolic Mapping configuration
The devices configuration, shown on figure below, follows the following parameters:
Figure 57: Device General Parameters Settings
Configuration Description Default Options
Slave Address MODBUS slave address 1 0 to 255
107

ALTUS Nexto Series Specifications

General

Brand	ALTUS
Model	Nexto Series
Category	Computer Hardware
Language	English