C500TS502 Omron, C500TS502 Datasheet - Page 56

• Manufacturer Part Number: C500TS502
• Description: RTD INPUT MODULE
• Manufacturer: Omron

Specifications of C500TS502

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Programming Examples of 4-Word Mode
5- -6- -3
Example 1
Example 2
5- -6- -4
50
Setting and Resetting, Enables and Resets
Programming Note
Reset Low/High Alarm
Enable Write from Serial Port
Most programs will contain programming for both reading from and writing to
the module as shown in the previous sections. However, since the same
handshaking bits are used in both operations, the two cannot be performed
simultaneously. In fact, care in programming must be exercised to insure that
they are not. The easiest way to do this is to have one section prevent the
other from being initiated while it itself is enabled, and vice versa. The
LATCH bits in the programming examples, which indicate which section is
enabled at the time, can be used for this.
Furthermore, the handshaking bit PC Write Finished appears in both writing
and reading sections. While one section may turn the bit ON, the section that
follows, though disabled, will turn it OFF since that section’s logic is still
scanned if programmed exactly as shown. One way to solve this problem is
to use jumps in the program to jump over the disabled section so that the
logic is not scanned. A second way is to store the logic leading up to PC
Write Finished in a temporary location in each section, then logically OR the
two temporary locations together and store the result in PC Write Finished.
The Enables and Resets in Word N+1 Bits 09 thru 13 should be set to ‘1’ for
at least about 30 milliseconds to ensure that they are read by the module. In
programs whose scan time is 30 ms or more, this is not a problem. In very
short programs, these bits may need to be set for two or more program
scans.
C-Series
CV-Series
ALRM RST
20110
Reset
00311
020111
WRT ENA
ALRM FLG
00508
ALRM RST
SER PRT
Q000310
00311
When reset strobes on
and the alarm flag in word
N+3 is ON, alarm reset in
word N+1 is turned ON,
when the flag clears,
alarm reset is turned OFF
Section 5- -6