User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06

Section 9 – Online transaction messages with Master / Session keys 2015-04-20

Page212

Uniform Industrial Corp. Proprietary and Confidential Total 342 pages

Message Z3 Display Line Prompts

Format: <STX>Z3[count]<SUB>[prompt1]<FS>[prompt2..7]<ETX>[LRC]

(Request frame, normal)

<STX>Z3<GS>[PromptID1]<FS>[PromptID2..7]<SUB><ETX>[LRC]

(Request frame, authenticated)

<STX>Z3<RS>[PromptID1]<FS>[PromptID2..7]<ETX>[LRC]

(Request frame, authenticated for PIN entry)

<STX>Z3[status] <ETX>[LRC]

(Response frame, authenticated)

Message length: Variable 8 to 124 bytes.

Usage: The PIN pad will display the received prompt strings (up to 7 lines of prompt). If the

length of prompt exceeds the maximum characters per line, this prompt will be

truncated.

Message element:

Z3 request frame (normal mode)

Field Length

Value and description

Z3 2 Message ID

[Count] 1 Number of prompts to be displayed

<SUB> 1 <1A> (optional)

When <SUB> exists, PIN pad will

clear clear screen contents.

[Prompt1] var First string to be displayed.

<FS> 1 <1C>, field separator

[Prompt2..7] var Remaining strings to be displayed.

Note. <FS> is required between

messages

[LRC] 1 Checksum