3BHE014105R0001模塊IGCT,3BHE014105R0001使用區(qū)域
使用機架中的多個模塊升級固件當(dāng)安裝多個IO模塊時，使用WinLoader實用程序升級PLC固件的過程可能會失敗在主機架、遠程機架或擴展機架中，由于重新啟動PLC CPU需要額外的時間。如果升級進程失敗，等待電源上的OK LED停止閃爍，然后單擊Winloader固件更新失敗對話框。如果升級再次失敗，請將PLC CPU移到機架上沒有IO模塊，重新啟動升級過程。
3BHE014105R0001模塊IGCTPID積分貢獻積分率為0或1時，無法正確計算PID積分貢獻。以太網(wǎng)操作說明IP地址類的子網(wǎng)掩碼值必須正確CPU374接受IP地址和子網(wǎng)掩碼的一些無效組合。例如雖然IP地址=129.0.0.1和子網(wǎng)掩碼=255.254.0.0的組合無效，但可以接受。本例為B類IP地址，由其兩個最高有效位定義。接下來的14個最多有效位定義網(wǎng)絡(luò)號或網(wǎng)絡(luò)ID。為了有效，子網(wǎng)掩碼必須包含位中的子網(wǎng)掩碼IP地址的類和netid字段的位置。當(dāng)通過硬件配置或工作站存儲此類無效組合時管理“chsosw”命令時，CPU374將假設(shè)某些IP地址可以在本地計算機上訪問當(dāng)它們不是時，則為子網(wǎng)。在上例中，地址在129.1.0.1到129.1.255.255之間受到影響。此問題會阻止以太網(wǎng)與受影響的IP地址通信，直到子網(wǎng)修正掩模。下表指定了每個地址類的最小子網(wǎng)掩碼。
Upgrading Firmware with Many Modules in Rack
The process of upgrading the PLC firmware with the WinLoader utility may fail when multiple IO modules are
in the main, remote or expansion racks, due to the extra time it takes to restart the PLC CPU. If the upgrade
process fails, wait until the OK LED on the power supply stops blinking and then click the Retry button on the
Winloader Firmware Update Failed dialog box. If the upgrade fails again, move the PLC CPU to a rack
without IO modules and restart the upgrade process.
PID Integral Contribution
The PID Integral Contribution is not calculated correctly with an integral rate of zero or one.Ethernet Operational Notes
Subnet Mask Value Must Be Correct For IP Address Class
The CPU374 accepts some invalid combinations of IP address and subnet mask. For example, the
combination of IP address = 129.0.0.1 and subnet mask = 255.254.0.0 is accepted although it is invalid.
This example is a Class B IP address, as defined by its two most significant bits. The next 14 most
significant bits define the network number or netid. To be valid, the subnet mask must contain ones in the bit
positions of the IP address’s class and netid fields.
When an invalid combination of this kind is stored through either the hardware configuration or station
manage “chsosw” command, the CPU374 will assume that certain IP addresses are reachable on the local
subnet when they are not. In the example above, addresses in the range 129.1.0.1 through 129.1.255.255
are affected. This issue prevents Ethernet communications with the affected IP addresses until the subnet
mask is corrected.
The following table specifies minimum subnet masks for each address class.
