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CJ1-H/CJ1M CPU Unit Ver. 2.0 Upgrades Section 1-6
Note The timer will continue to be incremented when the operating mode is
switched to RUN mode.
Example: The interval can be counted between processing A and processing
B without requiring timer instructions. This is achieved by calculat-
ing the difference between the value in A000 for processing A and
the value in A000 for processing B. The interval is counted in 10 ms
units.
CPU Units with unit version 4.0 and later also have a 1-s timer in
A002, which is incremented by 1 every 1 s.
1-5-6 New Special Instructions and Functions
The following new instructions and instruction functions have been added. For
details, refer to the CS/CJ Series Instructions Reference Manual (W340).
These new instructions are supported by the CX-Programmer Ver. 5.0 or
higher only.
• Serial Communications Instructions:
Supporting no-protocol communications with Serial Communications
Units with unit version 1.2 or later:
TXDU(256): TRANSMIT VIA SERIAL COMMUNICATIONS UNIT
RXDU(255): RECEIVE VIA SERIAL COMMUNICATIONS UNIT
Supporting no-protocol communications with Serial Communications
Boards with unit version 1.2 or later:
TXD(236): TRANSMIT
RXD(235): RECEIVE
• Model Conversion Instructions:
When using CX-Programmer Ver. 5.0 or higher to convert a C-series lad-
der program for use in a CS/CJ-series CPU Unit, the C-series
XFER(070), DIST(080), COLL(081), MOVB(082), and BCNT(067)
instructions will be automatically converted to the following instructions.
The operands do not require editing.
XFERC(565) BLOCK TRANSFER
DISTC(566) SINGLE WORD DISTRIBUTE
COLLC(567) DATA COLLECT
MOVBC(568) MOVE BIT
BCNTC(621) BIT COUNTER
• High-speed Counter/Pulse Output Instructions (CJ1M Only):
High-frequency calculation methods have been added to the pulse fre-
quency calculation methods for PRV(881) (HIGH-SPEED COUNTER PV
READ) and PRV2(883) (PULSE FREQUENCY CONVERT) instructions.
PRV(881) can also be used to read the pulse output frequency.
1-6 CJ1-H/CJ1M CPU Unit Ver. 2.0 Upgrades
The following table shows the functional upgrades for CJ1-H/CJ1M CPU Unit
Ver. 2.0.
Functional Upgrades for CJ1-H/CJ1M CPU Unit Ver. 2.0
Function Reference
Downloading and Uploading Individual Tasks Page 32
Improved Read Protection Using Passwords Page 33
Write Protection from FINS Commands Sent to CPU Units via Networks Page 38
Online Network Connections without I/O Tables Page 43
Communications through a Maximum of 8 Network Levels Page 45
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