Omron V640 - Page 73

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CIDRW System
User’s Manual
SECTION 4
When SECS is Used
SECTION 4
Reading from/Writing to ID Tags
• Set attributes
F18,F3 Write Attribute Request S,H→E,reply
L,2
1.<TARGETID> "00" (fixed)
2.L,n
1.L,2
1.<ATTRID1>
2.<ATTRVAL1>
n.L,2
1.<ATTRIDn>
2,<ATTRVALn>
Since the attributes for heads are all RO in this system, the target ID is fixed as "00".
S18,F4 Write Attribute Acknowledge S,H←E
L,3
1.<TARGETID> "00" (fixed)
2.<SSACK>
3.L,s
1.<STATUS1>
⋅
s.<STATUSs>
• When the specified target is invalid:
s = 0, SSACK = "CE" communications error
• When one or more undefined attributes or RO attributes are included:
s = 0, SSACK = "CE" communications error
• When illegal attribute data is specified:
s = 0, SSACK = "CE" communications error
• If the status of SSACK is other than "NO" (normal), the List of Status will comprise zero items.