C500TS502 Omron, C500TS502 Datasheet - Page 48

• 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

Interface to the PLC using 4-Word Mode
5- -5
5- -5- -1
Output Words
42
I/O
Word
N
N+1
Bit(s)
00-15
00-07
08
09
10
11
12
13
14
15
Interface to the PLC using 4-Word Mode
Operation
Description
Write Data Word
Memory Map Location,
Peak Hold Reset Enable
Read/Write Request
EEPROM Write Enable
Serial Port Write Enable
Low/High Alarm Reset
Out of Range Reset
Open RTD Reset
Peak Hold Reset
PC Write Finished
PC Read Finished
The C500-TS502 Analog Input Module communications with the program-
mable controller using the 4-Word Mode when the 2/4-Word Mode Jumper is
set in the 4-word position. Standard I/O instructions (MOV, LD, OUT, etc.) are
used to transfer data between the PLC and the module memory map. Details
of these instructions can be found in the Operation Manuals for the control-
lers. For jumper settings, see Section 2.
The module communicates with the PLC using four word mode addressing.
Standard I/O instructions are used to read and write data between the mod-
ule and the PLC. The module requires four words in the I/O table, two output
words from the PLC to the module, and two input words from the module to
the PLC. The functions of these words are described in the table below.
Function
This word contains the data which will be transferred to the module
memory map when a write cycle is executed.
These bits specify the memory map location in the module when
data is read from or written to the module. Valid values are 00 to 83
in BCD only. Also, when Peak Hold Reset is set to ‘1’, these bits 00
to 07 indicate for which Input Point(s) 1 to 8 respectively the Peak
Hold Function is to be reset.
This bit specifies whether the access to the module is a read (0) or
write (1) request. For a read request, the module returns in word
N+2 the data at the memory location specified in bits 00-07. For a
write request, the module writes the data from word N into the
memory location specified in bits 00-07.
Setting this bit to ‘1’ triggers the module to write the current RAM
configuration to EEPROM in module memory. On power up, the
new parameters will be the default start-up parameters.
Setting this bit to ‘1’ enables the serial port on the module to write to
the module memory map. A ‘0’ disables writing from the port.
Setting this bit to ‘1’ resets the Alarm Flags DM00 Bits 00-07, the
Low/High Alarm Flags DM09 Bits 00-15, the Input Point Specific
Low/High Alarm Flag Word N+3 Bit 04, and the Low/High Alarm
Flag Word N+3 Bit 08.
Setting this bit to ‘1’ resets the Out of Range Flags DM10, the Input
Point Specific Out of Range Error Flag Word N+3 Bit 05, and the
Out of Range Error Flag Word N+3 Bit 09. This bit also resets the
Open RTD Detect Flags DM83, the Input Point Specific Open RTD
Detect Flag Word N+3 Bit 07, and the Open RTD Detect Flag Word
N+3 Bit 13.
Setting this bit to ‘1’ resets the Peak Hold function for the Input
Points whose respective bit is set in Word N+1 Bits 00 thru 07.
This bit is set by the PLC to indicate to the module that there is new
data in words N and N+1. This bit should be latched high until TS
Read Finished, Word N+3 Bit 14, is set by the module. Note: PC
Write Finished does not need to be set when setting or resetting
Word N+1 bits 09 thru13.
This bit is set by the PLC to indicate to the module that the data has
been read from words N+2 and N+3. This bit resets TS Write
Finished, Word N+3 Bit 15, which was set by the module.
Section 5- -5