Simpact Freeway 1100 Guía de instalación descargar pdf (Pagina 80)

80 DC 900-1564A

Synchronous Link Control (SLC) Programmer’s Guide

5.15 Transparent Data (Master Access Mode Only)

Table 5–21 shows the DLI_PROT_SEND_TRANS_DATA header format. See Section 4.3.4 on

page 45 for a functional description and information regarding the associated data

area.

Requirements for non-DLI calls: ICP Header fields must be in network byte-order, Protocol

Header fields must be in client byte order, and the ICP Header

usICPCount field is required.

Table 5–21: DLI_PROT_SEND_TRANS_DATA Header Format

Field Command Value (Write) Response Value (Read)

Freeway Header (network byte-order; used in DLI calls only):

usFWPacketType = FW_DATA = FW_DATA

usFWCommand = FW_ICP_WRITE = FW_ICP_READ

usFWStatus = 0 = 0

ICP Header

usICPClientID = 0 = 0

usICPServerID = 0 = 0

usICPCount = 16 + data size (non-DLI calls only) = 16 + data size (non-DLI calls only)

usICPCommand = DLI_ICP_CMD_WRITE = DLI_ICP_CMD_READ

iICPStatus = Client memory order

(Table 5–2 on page 61)

= DLI_ICP_CMD_STATUS_OK or

negative error code (slc_errs.h ﬁle)

usICPParms[0] = 0 = ICP return node from Attach cmd

usICPParms[1] = 0 = 0

usICPParms[2] = 0 = 0

Protocol Header

usProtCommand = DLI_PROT_SEND_TRANS_DATA = DLI_PROT_SEND_TRANS_DATA

iProtModifier = 0 = 0

usProtLinkID = Link number = Link number

usProtCircuitID = 0 = 0

usProtSessionID = Session ID from Attach response = Session ID from Attach response

usProtSequence = 0 = 0

usProtXParms[0] = 0 = 0

usProtXParms[1] = 0 = 0

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Simpact Freeway 1100 Guía de instalación Pagina 80