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Page 26 of 29FS-8700-66_GE-SNP Manual
Appendix C.2. Scaling
Scaling was added in version 1.02a and is not supported for earlier versions.
Scaling is applied by the driver when bytes and registers are stored.
When bit data is transferred in bit format than scaling is not applied. When bit data is
transferred using bye format's then scaling may be applied.
Scaling is applied using the FieldServer's standard Map Descriptor parameters.
Data_Array_Low_Scale,
Data_Array_High_Scale,
Device_Low_Scale,
Device_High_Scale
Appendix C.3. Server Response NAK, Major and Minor Error Codes
From version 1.02c the when the Server responds with a MailBox Nak it now allocates
different Major and Minor error codes to differentiate the NAK reasons.
0x05 0xbe No Such Node
0x05 0xbd No Data
0x05 0xbc Other Problems Eg. No Server MD's defined for requested data.
Major Error Status Codes
Error Status
01h Illegal Service Request:
02h Insufficient Privilege:
04h Protocol Sequence Error:
05h Service Request Error:
06h Illegal Mailbox Type:
07h The PLC CPU's Service Request
Queue is full. The master should retry
later.
Minor Error Status Codes
Decimal
Hex
Description
-1
0FF
Service request has been aborted.
-2
0FE
-3
0FD
-4
0FC
-5
0FB
-6
0FA
-7
0F9
-8
0F8
Invalid task name referenced.
-9
0F7
Required to log in to a task for service.
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The request Node is not known by the Server.
The Data age is greater than the CACHE_AGE setting.
No privilege for attempted operation.
Unable to perform auto configuration.
I/O configuration is invalid.
Cannot clear I/O configuration.
Cannot replace I/O module.
Task address out of range.
Description
Either not defined or not supported.
Minor status field contains the privilege level required
for the service request
The CPU has received a message that is out of order.
Minor status field contains the request specific error
code. See table of Minor Error Status Codes below.
Service request mailbox type is either undefined or
unexpected.
It is recommended that the master wait a minimum of
10 ms before sending another service
Page 26 of 29
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