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31
DPF20 Frequency, rate, total or period counter
Instruction Manual
‘Slave’ mode
‘Master’ mode
Mode
Speed
(kbps)
1 to 31
Address
Destination
address
Configuration
‘Master’
1 to 31
128 for ‘broadcast’
0.1
seconds
0.5
seconds
1
seconds
5
seconds
15
seconds
60
seconds
Frequency
Configuration
ASCII
Format
Tools
Automatic
Decimal point
use key ‘LE’ to select
Manual
Legacy mode
Factory
configuration
Version
Answer delay
delay for answers,
from 0 to 1000 mSec.
At menu ‘
Configuration ASCII
’ (‘
AScI
’), configure the instrument at
parameter ‘Mode’ (‘ModE’) to work as ‘slave’ or ‘master’, at param
-
eter ‘
Address’ (‘Addr’) set the address value from ‘1’ to ‘31’, set the
bus speed in kbps at parameter ‘Speed’ (‘
bAud
’) and set the data
format at parameter ‘Format’ (‘
bItS
’).
When working as ‘master’, the instrument continuously transmits
the display value data frame. The local module address is ‘0’. Con
-
figure at menu ‘
Configuration Master
’ (‘cnF.M’) the ‘
Destination ad
-
dress’ (‘d.Add’) parameter from ‘1’ to ‘31’ or use value ‘128’ for a
broadcast message. At parameter ‘Frequency’ (‘FrEq’) select the how
often the frame with the reading value will be transmitted.
Special tools are grouped inside the ‘Tools’ (‘TooL’) menu.
• the ‘Decimal point’ (‘dP’) menu is provided for compatibility with
ancient hardware that does not support decimal point retransmis
-
sion. By default, select ‘
Automatic
’ (‘Auto’). If your instrument
does nos transmit the decimal point position, select ‘Manual
’
(‘MAnL’) and fix the position of the decimal point manually.
•the ‘Legacy mode’ (‘
LEG’
) parameter is provided to maintain
compatibility with instruments with older communication proto
-
cols. Select ‘on’ to activate this mode.
• the ‘Answer delay’ (‘
AnS.d’
) parameter applies only to ‘Slave’
mode. The local module delays the answer frame. Configure for
applications where the ‘Master’ needs additional time to switch
between ‘transmit’ and ‘receive’ modes. Enter a numeric value be
-
tween ‘0’ and ‘1000’ mSeconds.
• at the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load the de
-
fault factory configuration for the instrument.
the ‘
Version
’ (‘
VEr
’) menu informs of the current firmware version
installed in the module.
8 bits, no parity, 1 stop
8 bits, even parity, 1 stop
8 bits, odd parity, 1 stop
8 bits, no parity, 2 stop
2.4.2
Configuration menu
2.4.3
Factory configuration
Configuration ASCII
Mode
Slave
Address
1
Speed (‘bAud’)
19.2 Kbps
Format (‘bItS’)
8n1
Configuration ‘Master’
Destination address
31
Frequency
0.5 seconds
Tools
Decimal point
Auto
Legacy
Off
Answer delay
0 mSeconds