INFICON IC6 Thin Film Deposition Controller - Manual (Page 176)

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IC6 Operating Manual
10.3 Message Format
The Standard message protocol serves as a structure for the contained command
or response information. It also can provide a level of acknowledgment between
the host and server and a mechanism for verifying the information content. The IC6
supports the following RS-232 protocols: Standard, Dlog Comma and Dlog Page.
The Dlog protocols only provide for one-way transmission of layer data from the
IC6.
Hardware handshaking is not supported.
Remote Communications parameters are set up in the General screen Comm
page.
NOTE: Communication returns "can not do now", Response Error "F", 0x46, when
Source Maintenance, Cross Talk Calibrate and Auto Tune modes are
enabled.
TCP/IP will always operate using the Standard protocol command set. It is not
affected by the RS-232 Protocol selection.
10.3.1 Protocol
Key:
<> . . . . . . Enclosed element further defined below (or above, if repeated use)
(). . . . . . . Optional Element
I . . . . . . . Or
x...x. . . . . One or more of x included
10.3.1.1 Command Packet (Host to IC6 Message)
Length . . . . . . . . . . . . . . . . . . . . . . . 2 bytes Low / High (not including checksum
or length bytes). Numeric value from 0 to
57,800 (two bytes) representing the number
of characters in the command. In order of
transmission, the low byte will precede the
high byte. For most commands, the number
for characters will be less than 256. In this
situation the low byte will contain the
character count while the high byte will have
zero value.
Message . . . . . . . . . . . . . . . . . . . . . (...)