32 Line Matrix Printer LinePrinter Plus Programmer's Reference

Using the EVFU

161

Using the EVFU

Once the EVFU program has been enabled and loaded, sending the

appropriate channel code to the printer will cause any data in the buffer to

print and will position the paper to the next line on the form having the

specified channel number assigned in EVFU memory.

For a data byte to be recognized as an EVFU instruction, the following criteria

must be met:

• Data bit 5 must be 1 (set)

• Data bits 6-8 must be 0 (not set)

Given these conditions, the lower four bits of a byte will specify the EVFU

channel number. Table 31 lists the EVFU channels and their equivalent data

bytes.

Table 31. P-Series EVFU Codes

ASCII Data Bits

Channel

Hex Dec.Code87654321

10 16 DLE 000100001 (TOF)

11 17 DC1 000100012

12 18 DC2 000100103

13 19 DC3 000100114

14 20 DC4 000101005

15 21 NAK000101016

16 22 SYN000101107

17 23 ETB 000101118

18 24 CAN000110009

19 25 EM 0001100110

1A 26 SUB0001101011

1B 27 ESC0001101112 (VT)

1C 28 FS 0001110013

1D 29 GS 0001110114

1E 30 RS 00011110Start Load

1F 31 US 0 0 0 1 1 1 1 1 End Load

(X = Undefined, 0, or 1) (1 = High) (0 = Low)