Owner's manual

Function of Control/Status Bits
Chapter 6
620
Initialization Word One
Bit Function Status
17 ACK/NAK 0*
= Not used by ASCII device
1 = ACK/NAK required by device
16
Stop Bits
0* = Device generates one stop bit
1 = Device generates two stop bits
15
Parity Enable
0* = Device does not use parity bit
1 = Device generates a parity bit
14 Parity
0* = Odd
1 = Even
13
Number of Data Bits
0* = Device generates 8bit data
1 = Device generates 7bit data
12, 11, 10
Communication
Rate
000* = 300 baud
001 = 600 baud
010 = 1200 baud
01
1 = 2400 baud
100 = 4800 baud
101 = 9600 baud
1
10 = 1
10 baud
111 = 1
10 baud
07, 06, 05 Mode of
Transmission
000* = Full duplex with echo
001 = Full duplex without echo
010 = Simplex read
01
1 = Simplex write
100 = Half duplex with echo
101 = Half duplex without echo
all other codes are invalid
04, 03, 02
Mode of Operation
000* = Data mode
001 = Report Generation (RG) mode
01, 00 Number of
Initialization W
ords
00* = W
ord 1
01 = W
ords 1 and 2
10 = W
ords 1, 2, and 3
1
1 = W
ords 1, 2, 3, and 4
*Default value when you do not select that initialization word