Omron SYSMAC CJ1W-SCU21-V1 User Manual

31
Specifications Section 1-6
Note 1. The CX-Protocol can be used to register up to 96 attributes per message.
2. A macro syntax error will occur when the protocol macro is executed if
more than 31 write attributes are registered in one message.
Serial Gateway Specifications
Message unit
contents
*2:
Data
attributes of
addresses
and data in
send/receive
messages
Vari-
ables
Y Linear expres-
sion including
repeat counter
aN + b a: 0 to 1000; b: 1 to 1000
N: Repeat counter value
Wild card * Can be received regardless of
the length (only in receive mes-
sages)
Word designa-
tion
Word read (I/O
memory to
send data)
Specify using
the 3rd oper-
and of the
PMCR(260)
instruction.
Set leading
address + n
(The linear
expression aN
+ b, including
repeat counter
N, is also pos-
sible for n.)
Specify using a
link word.
I/O memory
direct designa-
tion
*3:
Error check codes
LRC, LRC2, CRC-CCITT, CRC-16, SUM, SUM1, and SUM2 can be calcu-
lated.
Maximum length of
send/receive mes-
sages
1,000 bytes. (A maximum length between 200 and 1,000 bytes can be set in
the Setup Area.)
Maximum number of
data attributes regis-
tered in one message
96 attributes (see note 1)
Maximum number of
write data attributes
registered in one mes-
sage
30 attributes (see note 2)
Trace function A total of up to 1,700 bytes (characters) of time-series data can be traced in
send and receive messages.
Changes to the step No. and control signals such as RS and CS can also be
traced.
Item Description
Item Description
Conversion source FINS commands (received through network (including Host
Link FINS) or CPU bus)
Conversion functions • The received FINS command sent to the Board/Unit’s serial
port is converted according to the FINS command code as
follows:
2803 hex: FIN header removed and converted to Compo-
Way/F command.
2804 hex: FIN header removed and converted to Modbus-
RTU command.
2805 hex: FIN header removed and converted to Modbus-
ASCII command.
The converted command is sent to the serial port.
• When the received FINS command is sent to the Board or
Unit (user-specified FINS command code), the FINS com-
mand is enclosed in a Host Link header and terminator.

Omron SYSMAC CJ1W-SCU21-V1 Specifications

General

Brand	Omron
Model	SYSMAC CJ1W-SCU21-V1
Category	Network Hardware
Language	English