FieldServer FS-8700-12 Driver Notes Continuous Map Descriptors, Checksum, Command Support

FS-8700-12_DH+ Manual Page 13 of 14

6.Driver Notes

6.1.Continuous Map Descriptors

RS View has been known to crash if it tries to read a server mapping that is discontinuous. e.g. Server map 1: N21: 0-31

Server map 2: N21: 32-100

This will panic the FieldServer and crash RS view as the DH+ will attempt to map N21: 0-100

If set up as: Server Map 1: N21: 0-100 No problems are experienced

6.2.Checksum

When selecting checksum options for DH+ devices communicating to the FieldServer, take note that BCC (Block Check Sum) is supported, whereas CRC (Cyclic Redundancy Check) is not.

6.3.DH+ as FieldServer Server

If the FieldServer is to be polled by the DH+ network, then it is important to declare the station address in the “FieldServer” portion of the configuration file.

e.g. FieldServer
Title,	System_Station_Address
DCC099 Primserv.csv v3.00u,	11

This sets the FieldServer address to 11. The Node_ID on the server side must then be the same as the station address declared.

6.4.Command Support

The following commands are supported by the FieldServer for the various PLC types:

PLC_Type	File_type		FNC	Read		FNC
PLC3	N	1		Range Read	0
	F	1		Range Read	0
	B	1		Range Read	2
PLC5	N	1		Range Read	0
	F	1		Range Read	67
	B	1		Range Read	26
	N		A2	Protected Typed		AA
				Logical Read
	F	A2		Protected Typed		AA
				Logical Read
SLC5	B		A2	Protected Typed		AB
				Logical Read
	I	A2		Protected Typed	-
				Logical Read
	O	A2		Protected Typed	-
				Logical Read

Write

Range Write

Range Write Bit Write Range Write Typed Write Read Modify Write Protected Typed Logical Write Protected Typed Logical Write Protected Typed Logical Write

-

-

Typical Command

N7: 3, L5

F12: 3, L5

B3/4: 5, l5

N7: 3 , L5

F12: 3, L5

B3/4: 5, L5

N7: 3, L5

B3/4: 5, L7

B3/4: 5, L8

I:13, L5

O:13, L5