GE manual GFK-1541B Programming Channel Commands

3

(Words 7–17):See the descriptions in Example 1.

(Word 18) Remote Host - Network Address Type: Word 18 specifies the format of the remote host’s address. Currently, Word 18 must contain the value 1 or 3. A value of 1 indicates a dotted-decimal IP address expressed using a separate register for each decimal digit. A value of 3 indicates a Network Address name. See Example 1 for information on using address type 1.

(Word 19) Remote Host - Network Address Length: Word 19 specifies the length in words of the remote host’s Network Address name. With an address type of 3 specified in Word 18, Word 19 must contain 32 decimal.

(Words 20–35) Remote Host - Network Address Name: Words 20–35 specify the Network Address name of the remote host as an ASCII character string. The Network Address name may contain up to 31 characters, is case sensitive, and must be terminated with a null character (zero). An error will result if the Network Address name is empty or if the name could not be resolved into the address of an actual device.

The Network Address name must have each pair of ASCII characters reversed within the PLC memory. For example, the name “PLC_1aa” (“P” = 50H, “L” = 4CH, “C” = 43H, “_” = 5FH, “1” = 31H, “a” = 61H, “a” = 61H ) would have 4C50H in Word 20, 5F43H in Word 21, 6131H in Word 22, and 0061H in Word 23. Words 24–35 all contain 0000H.

Note

The Network Address name of the remote host must be defined in the Name Table in this Ethernet Interface or be defined at a reachable DNS Name Server. See the chapter: “Network Administration Support”, for more information.

(Words 36–51):Reserved, set to 0.

GFK-1541B Chapter 3 Programming Channel Commands 3-27