Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 410

Temperature Input Terminals
DRT1-compatible
1/100 Display Mode
Note 1. After selecting 1/100 display mode by turning ON pin 5 of the DIP switch,
the 1/100 display mode must be enabled by setting the connection path
with the Configurator.
If the normal display mode is selected for the I/O data in the Configurator,
the temperature data will be 0.
2. In 1/100 display mode, the temperature data will be converted to two plac-
es below the decimal even though the actual resolution is not 0.01 ° C (or
° F). Consequently, the 0.1 ° C/ ° F or 0.01 ° C/ ° F display digits may jump back
and forth between values. Treat any values displayed beyond the specified
input resolution as reference data.
The input temperature data for all input types is transmitted to the Master as
data with precision to 0.01 digits. In DRT1-compatible 1/100 display mode, a
single temperature data value is multiplied by 100 and transmitted to the Mas-
ter as 6-digit signed hexadecimal data (4 integer digits and 2 digits below the
decimal point). At this point, the data is divided into two words and the two
words are transmitted alternately at 125-ms intervals (each word contains one
part of the temperature value).
The four inputs occupy 4 words in the Master, as shown in the following dia-
gram.
First word + 0
First word + 1
First word + 2
First word + 3
15 14 13 12 11 10 9 8
Input 0 Temperature conversion data
Input 1 Temperature conversion data
Input 2 Temperature conversion data
Input 3 Temperature conversion data
Section 7-6
7 6 5 4 3 2 1 0
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