Omron NX502-1 Series User Manual

Enumerator Meaning
⋮ ⋮
_EM18 24 bank area of Expansion Memory Area
The data type of Option is structure_sRESPONSE. The specifications are shown below.
Variable Name Contents Data type Valid range Unit
Initial
value
Option Response
Response monitoring
and retry specifications
_sRES-
PONSE
--- --- ---
isNonResp No response
TRUE: Response is not
required.
FALSE: Response is re-
quired.
BOOL
Depends on
data type.
---
FALSE
TimeOut Timeout Time
Timeout time
0: 2.0 s
UINT 0.1 s
20
(2.0 s)
Retry Retry count Retry count USINT 0 to 15
Cou
nt
0
If no response is returned within the timeout time Option.T
imeOut
when the value of the Response Not
Necessary Flag Option.isNonResp is FALSE, the command is retried until the response is returned.
The retry count is specified by Option.Retry.
The timeout time is Option.TimeOut x 0.1 s. However, when the value of Option.TimeOut is 0, the
timeout time becomes 2.0 s. The initial value of Option.TimeOut is also 2.0 s.
Related System-defined Variables
Name Meaning
Data
type
Description
_Port_numUsingPort
Number of Used
Ports
USINT This is the number of ports that are currently used.
_Port_isAvailable
Network Communi-
cations Instruction
Enabled Flag
BOOL
TRUE: A port is available.
FALSE: A port is not available.
Precautions for Correct Use
• This instruction can be executed only when there is an available port. Therefore, use the system-
defined variable _Port_isAvailable (Network Communications Instruction Enabled Flag) in an N.O.
execution condition for the instruction.
• The command is not sent if the value of RcvSize is 0. In that case, the value of Done changes to
TRUE.
• During execution of this instruction, set Option.Retry to a value other than 0 by considering the case
when the send message or response is lost due to noise that occurs during communication. If no
response is returned within Option.TimeOut, try to resend the message.
• Refer to the CS/CJ/CP/NSJ-series Communications Commands Reference Manual (Cat. No. W342)
for specification of network address.
The FINS routing specification in the NX-series CPU Units differ from those in the CS/CJ-series
CPU Units.
3 Client Function
3-10
NX-series CPU Unit FINS Function User's Manual (W596)

Omron NX502-1 Series Specifications

General

Brand	Omron
Model	NX502-1 Series
Category	Controller
Language	English